### Initialize and Use chatMembers Middleware

Source: https://grammy.dev/ref/chat-members/chatmembers

This example shows how to initialize the chatMembers middleware with a memory adapter and register it with your bot. Ensure you enable the 'chat_member' update type in your bot's start configuration.

```typescript
const bot = new Bot("<YOR_TELEGRAM_TOKEN>");
const adapter = new MemorySessionStorage();

bot.use(chatMembers(adapter));

bot.start({ allowed_updates: ["chat_member"] });
```

--------------------------------

### Example Plugin Configuration

Source: https://grammy.dev/ref/conversations/conversationconfig

Demonstrates how to configure a plugin within a ConversationConfig. This example shows how to use a transformer with the API configuration.

```typescript
plugins: [async (ctx, next) => {
  ctx.api.config.use(transformer)
  await next()
}]
```

--------------------------------

### Install Commands Flavor

Source: https://grammy.dev/ref/commands/commands

Installs the commands flavor into the context. This is a generic type parameter that extends the base Context.

```typescript
import { Context } from "grammy";
import { commands, Command } from "@grammyjs/commands";

type MyContext = Context & {
    // ...
};

const bot = new Bot<MyContext>("YOUR_BOT_TOKEN");

bot.use(commands());

// Example command definition
const startCommand: Command<MyContext> = {
    name: "start",
    handler: async (ctx) => {
        await ctx.reply("Hello!");
    },
};

bot.command("start", startCommand);

bot.start();
```

--------------------------------

### Select Input Form Field with Custom Keyboard Example

Source: https://grammy.dev/ref/conversations/conversationform

Defines a form field that accepts one of several predefined string options. This is particularly useful with custom keyboards. The example demonstrates setting up a keyboard with options and handling the user's selection.

```typescript
select<E extends string>(entries: E[], options?: FormOptions<C, E>);

const keyboard = new Keyboard()
  .text("A").text("B")
  .text("C").text("D")
  .oneTime()
await ctx.reply("A, B, C, or D?", { reply_markup: keyboard })
const answer = await conversation.form.select(["A", "B", "C", "D"], {
  otherwise: ctx => ctx.reply("Please use one of the buttons!")
})
switch (answer) {
  case "A":
  case "B":
  case "C":
  case "D":
  // ...
}
```

--------------------------------

### Match Only At Start Option

Source: https://grammy.dev/ref/commands/commandoptions

Determines if a command should only be matched at the beginning of a message. Defaults to true.

```typescript
matchOnlyAtStart: boolean;
```

--------------------------------

### Create a basic conversational menu

Source: https://grammy.dev/ref/conversations/conversation

Create an interactive inline keyboard menu. This example shows how to define text buttons that reply or close the menu.

```typescript
const menu = conversation.menu()
  .text("Send message", ctx => ctx.reply("Hi!"))
  .text("Close", ctx => ctx.menu.close())

await ctx.reply("Menu message", { reply_markup: menu })
```

--------------------------------

### Select between Options with Action

Source: https://grammy.dev/ref/conversations/conversation

This example uses `form.select` to wait for a specific string input ('Yes' or 'No') and defines an `action` to be performed when a valid input is received, such as deleting the message.

```typescript
const text = await conversation.form.select(["Yes", "No"], {
  action: ctx => ctx.deleteMessage()
})
```

--------------------------------

### Chaining WaitUntil Calls

Source: https://grammy.dev/ref/conversations/conversation

This example illustrates chaining multiple `waitUntil` calls to sequentially filter updates, first for messages ending with 'grammY' and then for those matching a '::hashtag' query.

```typescript
const ctx = await conversation.waitUntil(ctx => ctx.msg?.text?.endsWith("grammY"))
  .andFor("::hashtag")
```

--------------------------------

### Hydrate Chat Member Example

Source: https://grammy.dev/ref/chat-members/hydratechatmember

Demonstrates how to use the hydrateChatMember transformer to check if a chat member is an administrator.

```typescript
const bot = new Bot<HydrateChatMemberFlavor<Context>>("");
bot.api.config.use(hydrateChatMember());

bot.on("message", async (ctx) => {
  const author = await ctx.getAuthor();
  if (author.is("admin")) {
    author.status; // "creator" | "administrator"
  }
});
```

--------------------------------

### Wait for a Number using Form Field

Source: https://grammy.dev/ref/conversations/conversation

This example shows how to use the `form.number` field to wait for a numeric input from the user and then reply with its square.

```typescript
// Wait for a number
const n = await conversation.form.number()
// Send back its square
await ctx.reply(`The square of ${n} is ${n * n}!`) 
```

--------------------------------

### Get Registered Prefixes

Source: https://grammy.dev/ref/commands/commandgroup

A getter that returns an array of all registered command prefixes. This can be useful for understanding how commands are structured or for debugging.

```typescript
get prefixes(): string[];

```

--------------------------------

### halt

Source: https://grammy.dev/ref/conversations/conversation

Terminates the conversation immediately after calling any installed exit handlers. This method never returns.

```APIDOC
## halt

### Description
Terminates the conversation immediately after calling any installed exit handlers. This method never returns.
By default, this will consume the update. Pass `{ next: true }` to make sure that downstream middleware is called.

### Method
`halt(options?: HaltOptions): Promise<never>`

### Parameters
#### Path Parameters
None

#### Query Parameters
None

#### Request Body
None

### Request Example
```typescript
conversation.halt({ next: true });
```

### Response
#### Success Response (never)
This method never returns.

#### Response Example
None
```

--------------------------------

### Get Registered Commands

Source: https://grammy.dev/ref/commands/commandgroup

A getter that returns an array of all registered Command objects. This allows inspection of the commands managed by the group.

```typescript
get commands(): Command<C>[];

```

--------------------------------

### Halt Conversation Immediately

Source: https://grammy.dev/ref/conversations/conversation

Use `halt` to stop the conversation and trigger any installed exit handlers. Pass `{ next: true }` to allow downstream middleware to execute.

```typescript
halt(options: HaltOptions): Promise<never>;
```

--------------------------------

### Interact with conversation from menu button handlers

Source: https://grammy.dev/ref/conversations/conversation

Handle user input within menu button callbacks to update conversation state. This example demonstrates setting and clearing a name using `conversation.form.text()`.

```typescript
let name = ""
const menu = conversation.menu()
  .text("Set name", async ctx => {
    await ctx.reply("What's your name?")
    name = await conversation.form.text()
    await ctx.editMessageText(name)
  })
  .text("Clear name", ctx => {
    name = ""
    await ctx.editMessageText("No name")
  })

await ctx.reply("No name (yet)", { reply_markup: menu })
```

--------------------------------

### Filter for Bot Entering a Group

Source: https://grammy.dev/ref/chat-members/mychatmemberfilter

Use `myChatMemberFilter` to listen for updates when the bot enters a group or supergroup. This example filters for transitions from 'out' to 'in' status.

```typescript
bot.chatType(['group', 'supergroup']).filter(
 myChatMemberFilter('out', 'in'),
 (ctx) => {
   const { old_chat_member: oldChatMember, new_chat_member: newChatMember } =
     ctx.myChatMember;
   // ...
 },
);
```

--------------------------------

### Get current timestamp once

Source: https://grammy.dev/ref/conversations/conversation

Use `now()` to get a timestamp that remains constant during replays. Prefer this over `Date.now()`.

```typescript
now();
```

--------------------------------

### Get random number once

Source: https://grammy.dev/ref/conversations/conversation

Use `random()` to get a random number that remains constant during replays. Prefer this over `Math.random()`.

```typescript
random();
```

--------------------------------

### Command Constructor with Handler

Source: https://grammy.dev/ref/commands/command

Initializes a new command with a name, description, and a handler. This command needs to be added to a CommandGroup to function.

```typescript
Command(
  name: string | RegExp,
  description: string,
  handler: MaybeArray<Middleware<CommandContext<C>>>,
  options?: Partial<CommandOptions>,
);
```

--------------------------------

### Create SetMyCommandsParams from CommandGroup

Source: https://grammy.dev/ref/commands/mycommandparams

Use the `from` static method to merge and serialize one or more `CommandGroup` instances into an array of commands parameters. This array can then be used to set the commands menu displayed to the user.

```typescript
from<C extends Context>(commands: CommandGroup<C>[], chat_id: BotCommandScopeChat["chat_id"])
```

--------------------------------

### CommandGroup Constructor

Source: https://grammy.dev/ref/commands/commandgroup

Initializes a new CommandGroup instance. Options are partial and can configure command behavior.

```typescript
new CommandGroup(options: Partial<CommandOptions>);

```

--------------------------------

### Command Method: isApiCompliant

Source: https://grammy.dev/ref/commands/command

Checks if the command can be used with the `setMyCommands` API. Returns true if compliant, or an array with false and reasons if not.

```typescript
isApiCompliant(language?: LanguageCode | "default"): [true] | [false, string[]];
```

--------------------------------

### Command Constructor Overload

Source: https://grammy.dev/ref/commands/command

An alternative constructor signature for initializing a command, potentially with a handler or options.

```typescript
Command(
  name: string | RegExp,
  description: string,
  handlerOrOptions?: MaybeArray<Middleware<CommandContext<C>>> | Partial<CommandOptions>,
  options?: Partial<CommandOptions>,
);
```

--------------------------------

### Command Method: middleware

Source: https://grammy.dev/ref/commands/command

Returns the middleware associated with this command.

```typescript
middleware();
```

--------------------------------

### Static Method: findMatchingCommand

Source: https://grammy.dev/ref/commands/command

Finds a command that matches the provided input within the given context and options.

```typescript
findMatchingCommand(
  command: MaybeArray<string | RegExp>,
  options: CommandOptions,
  ctx: Context,
): CommandMatch | null;
```

--------------------------------

### commandMatch

Source: https://grammy.dev/ref/commands/commandsflavor

Provides information about the matched command and the remaining input. If the matched command is a regular expression, a `match` property will expose the result of the RegExp match.

```APIDOC
## commandMatch

### Description
The matched command and the rest of the input. When matched command is a RegExp, a `match` property exposes the result of the RegExp match.

### Method
(Property access)

### Parameters
None

### Request Example
```typescript
// Example usage
const matchResult = bot.api.commandMatch;
console.log(matchResult.command);
console.log(matchResult.text);
if (matchResult.match) {
  console.log(matchResult.match);
}
```

### Response
#### Success Response
- **CommandMatch**: An object containing the matched command and remaining text, potentially with RegExp match details.

#### Response Example
```json
{
  "example": {
    "command": "/greet",
    "text": "hello there",
    "match": ["hello there", "arg1", "arg2"]
  }
}
```
```

--------------------------------

### Get Active Conversation Counts

Source: https://grammy.dev/ref/conversations/conversationcontrols

Returns an object detailing the number of active instances for each conversation identifier in the current chat. This helps in monitoring the state of parallel conversations.

```typescript
{
  captcha: 3,
  settings: 1,
}
```

--------------------------------

### enter

Source: https://grammy.dev/ref/conversations/conversationcontrols

Enters a conversation with a specified identifier. This method initiates the conversation flow and runs it until the first wait call. Arguments passed to this method are JSON-serialized and stored, and will be available when the conversation is replayed. Be cautious as there is no type safety for conversation arguments.

```APIDOC
## enter

### Description
Enters the conversation with the given identifier. By default, the name of the function is the identifier of the function. You can override this value when calling createConversation.

Entering a conversation will make the conversation run partially until the first wait call is reached. The enter call will therefore return long before the conversation has returned.

You can pass any number of arguments when entering a conversation. These arguments will be serialized to JSON and persisted in the storage as `string`. Whenever the conversation is replayed, this string is parsed back to objects and supplied to the conversation. This means that all arguments must be JSON-serializable.

Be careful: There is no type safety for conversation arguments! You must annotate the correct types in the function signature of the conversation builder function, and you also have to make sure that you pass matching values to `enter`.

This method will throw an error if the same or a different conversation has already been entered. If you want to enter a conversations in parallel to existing active conversations, you can mark it as parallel. This can be done by passig `{ parallel: true }` to createConversation.

### Method
`enter(name: string, ...args: unknown[]): Promise<void>`

### Parameters
#### Path Parameters
- **name** (string) - Required - The identifier of the conversation to enter.
- **args** (unknown[]) - Optional - Any number of JSON-serializable arguments to pass to the conversation.

### Request Example
```typescript
// Enters a conversation called "convo" upon a start command.
bot.command("start", async ctx => {
  await ctx.conversation.enter("convo", 42, "cool", { args: [2, 1, 0] })
})

async function convo(conversation, ctx, num, str, { args }) {
  // ...
}
```
```

--------------------------------

### Wait Until Message Ends with Specific Text

Source: https://grammy.dev/ref/conversations/conversation

This example shows how to use `waitUntil` with a predicate to wait for a message that ends with 'grammY', including an `otherwise` handler for invalid messages.

```typescript
const ctx = await conversation.waitUntil(ctx => ctx.msg?.text?.endsWith("grammY"), {
  otherwise: ctx => ctx.reply("Send a message that ends with grammY!")
})
```

--------------------------------

### Command Method: localize

Source: https://grammy.dev/ref/commands/command

Adds a new translation for the command, specifying the language code, name, and description.

```typescript
localize(
  languageCode: LanguageCode,
  name: string | RegExp,
  description: string,
);
```

--------------------------------

### Command Getter: hasCustomPrefix

Source: https://grammy.dev/ref/commands/command

A getter that returns a boolean indicating whether the command has a custom prefix defined.

```typescript
get hasCustomPrefix();
```

--------------------------------

### Command Method: toObject

Source: https://grammy.dev/ref/commands/command

Converts the command into an object representation, suitable for JSON serialization. It includes command, description, and handler status.

```typescript
toObject(languageCode: LanguageCode | "default"): Pick<BotCommandX, "command" | "description" | "hasHandler">;
```

--------------------------------

### Exit a Specific Parallel Conversation Instance

Source: https://grammy.dev/ref/conversations/conversationcontrols

Purges the state of a conversation with a given identifier at a specific chronological position in the current chat. For example, `exitOne("convo", 0)` exits the oldest active parallel "convo" conversation. Replays are not interrupted but their data won't be saved.

```typescript
await ctx.conversation.exitOne("convo", 0)
```

--------------------------------

### Command Prefix Option

Source: https://grammy.dev/ref/commands/commandoptions

Sets the prefix used to identify a command. Defaults to '/'.

```typescript
prefix: string;
```

--------------------------------

### select

Source: https://grammy.dev/ref/conversations/conversationform

Form field that validates if the incoming update contains text matching one of the predefined strings and returns the matched string. Useful with custom keyboards.

```APIDOC
## select<E>

### Description
Form field that checks if the incoming update contains a message or channel post with one of several predefined strings, and returns the actual text as string. Does not check captions.
This is especially useful when working with custom keyboards.

### Parameters
- **entries** (E[]) - Required - An array of predefined strings to select from.
- **options** (FormOptions<C, E>) - Optional - Configuration options for the select form field.

### Example
```typescript
const keyboard = new Keyboard()
  .text("A").text("B")
  .text("C").text("D")
  .oneTime()
await ctx.reply("A, B, C, or D?", { reply_markup: keyboard })
const answer = await conversation.form.select(["A", "B", "C", "D"], {
  otherwise: ctx => ctx.reply("Please use one of the buttons!")
})
switch (answer) {
  case "A":
  case "B":
  case "C":
  case "D":
  // ...
}
```

### Source
```typescript
select<E extends string>(entries: E[], options?: FormOptions<C, E>);
```
```

--------------------------------

### Command Getter: stringName

Source: https://grammy.dev/ref/commands/command

A getter that returns the command's name as a string.

```typescript
get stringName();
```

--------------------------------

### getNearestCommand

Source: https://grammy.dev/ref/commands/commandsflavor

Returns the nearest command to the user input based on a similarity algorithm. Returns `null` if no suitable command is found.

```APIDOC
## getNearestCommand

### Description
Returns the nearest command to the user input. If no command is found, returns `null`.

### Method
(Implied function call)

### Parameters
#### Path Parameters
None

#### Query Parameters
None

#### Request Body
- **commands** (CommandGroup<C> | CommandGroup<C>[]): The list of commands to search within.
- **options** (Omit<Partial<JaroWinklerOptions>, "language">): Optional settings for the similarity comparison, excluding the language option.

### Request Example
```typescript
// Example usage
const nearest = await bot.api.getNearestCommand(availableCommands, { threshold: 0.8 });
```

### Response
#### Success Response
- **string | null**: The name of the nearest command, or null if no command is found.

#### Response Example
```json
{
  "example": "/start"
}
```

```json
{
  "example": null
}
```
```

--------------------------------

### BotCommand Array with Handler Flag

Source: https://grammy.dev/ref/commands/setmycommandsparams

An array of BotCommands, where each command can optionally include a boolean flag 'hasHandler' to indicate the presence of a handler.

```typescript
commands: (BotCommand & { hasHandler?: boolean })[];
```

--------------------------------

### Command Constructor without Handler

Source: https://grammy.dev/ref/commands/command

Initializes a new command with a name and description, but no initial handler. Handlers can be added later. This command needs to be added to a CommandGroup to function.

```typescript
Command(
  name: string | RegExp,
  description: string,
  options?: Partial<CommandOptions>,
);
```

--------------------------------

### Command Getter: prefix

Source: https://grammy.dev/ref/commands/command

A getter that returns the prefix configured for this command.

```typescript
get prefix();
```

--------------------------------

### Register Command with Handler

Source: https://grammy.dev/ref/commands/commandgroup

Registers a new command with a specified name, description, handler, and optional configuration. The handler can be a single middleware function or an array of middleware functions.

```typescript
command(
  name: string | RegExp,
  description: string,
  handler: MaybeArray<Middleware<CommandContext<C>>>, 
  options?: Partial<CommandOptions>,
): Command<C>;

```

--------------------------------

### waitForCommand

Source: https://grammy.dev/ref/conversations/conversation

Performs a filtered wait call that is defined by a command filter. It waits for an update and calls `skip` if the received context object does not contain the expected command. This uses the same logic as `bot.command`. An `otherwise` action can be specified if a context object is discarded.

```APIDOC
## waitForCommand

### Description
Performs a filtered wait call that is defined by a command filter. It waits for an update and calls `skip` if the received context object does not contain the expected command. This uses the same logic as `bot.command`. An `otherwise` action can be specified if a context object is discarded.

### Method Signature
`waitForCommand(command: MaybeArray<StringWithCommandSuggestions>, opts?: OtherwiseOptions<C>): AndPromise<CommandContext<C>>`

### Parameters
#### Command
- **command** (string | Array<string>) - Required - The command to wait for.

#### Options
- **opts** (object) - Optional - Configuration options.
  - **otherwise** (function) - Optional - A function to execute if the context object does not contain the expected command.

### Example
```typescript
const ctx = await conversation.waitForCommand("start", {
  otherwise: ctx => ctx.reply("Please send /start!")
})
// Type inference works for deep links:
const args = ctx.match
```

### Chaining
Calls to `waitForCommand` can be chained with other filtered wait calls.
```typescript
const ctx = await conversation.waitForCommand("start")
  .andFor("message")
```
```

--------------------------------

### Me Property

Source: https://grammy.dev/ref/conversations/contextbasedata

Holds information about the bot itself.

```typescript
me: UserFromGetMe;
```

--------------------------------

### Create a conversational menu with submenus and navigation

Source: https://grammy.dev/ref/conversations/conversation

Define a conversational menu with navigation capabilities, including submenus and a back button. A menu identifier is used for seamless navigation.

```typescript
const menu = conversation.menu("root")
  .submenu("Open submenu", ctx => ctx.editMessageText("submenu"))
  .text("Close", ctx => ctx.menu.close())
conversation.menu("child", { parent: "root" })
  .back("Go back", ctx => ctx.editMessageText("Root menu"))

await ctx.reply("Root menu", { reply_markup: menu })
```

--------------------------------

### Deno Custom Inspect

Source: https://grammy.dev/ref/commands/commandgroup

Replaces the default `toString` method for custom inspection in the Deno runtime environment.

```typescript
[Symbol.for("Deno.customInspect")]();

```

--------------------------------

### Api Property

Source: https://grammy.dev/ref/conversations/contextbasedata

Contains basic information used for constructing Api instances.

```typescript
api: ApiBaseData;
```

--------------------------------

### Serialize Commands to Detailed Objects

Source: https://grammy.dev/ref/commands/commandgroup

Serializes all registered commands into a detailed object format. This includes information like name, prefix, and language, and can be filtered by language.

```typescript
toElementals(filterLanguage?: LanguageCode | "default"): BotCommandX[];

```

--------------------------------

### Register Command without Handler

Source: https://grammy.dev/ref/commands/commandgroup

Registers a new command with a name, description, and optional configuration, without an immediate handler. This overload is useful for commands that might have their handlers defined elsewhere or dynamically.

```typescript
command(
  name: string | RegExp,
  description: string,
  options?: Partial<CommandOptions>,
): Command<C>;

```

--------------------------------

### File Update Handler

Source: https://grammy.dev/ref/conversations/conversationform

This function checks for file messages or channel posts, retrieves the file object using `ctx.getFile()`, and returns it. It accepts options for handling file reception and non-file updates.

```typescript
file(options?: FormOptions<C, File>);

```

--------------------------------

### CommandGroup toString Method

Source: https://grammy.dev/ref/commands/commandgroup

Provides a string representation of the CommandGroup. This is a standard JavaScript method for object stringification.

```typescript
toString();

```

--------------------------------

### waitFor

Source: https://grammy.dev/ref/conversations/conversation

Performs a filtered wait call that is defined by a filter query. It waits for an update and calls `skip` if the received context object does not match the filter query. This uses the same logic as `bot.on`. An `otherwise` action can be specified if a context object is discarded.

```APIDOC
## waitFor

### Description
Performs a filtered wait call that is defined by a filter query. It waits for an update and calls `skip` if the received context object does not match the filter query. This uses the same logic as `bot.on`. An `otherwise` action can be specified if a context object is discarded.

### Method Signature
`waitFor<Q extends FilterQuery>(query: Q | Q[], opts?: OtherwiseOptions<C>): AndPromise<Filter<C, Q>>`

### Parameters
#### Query
- **query** (string | string[] | FilterQuery | FilterQuery[]) - Required - A filter query or an array of filter queries to match against.

#### Options
- **opts** (object) - Optional - Configuration options.
  - **otherwise** (function) - Optional - A function to execute if the context object does not match the query.

### Example
```typescript
const ctx = await conversation.waitFor(":text", {
  otherwise: ctx => ctx.reply("Please send a text message!")
})
// Type inference works:
const text = ctx.msg.text;
```

### Chaining
Calls to `waitFor` can be chained with other filtered wait calls.
```typescript
const ctx = await conversation.waitFor(":text").andFor("::hashtag")
```
```

--------------------------------

### Command Method: getLocalizedDescription

Source: https://grammy.dev/ref/commands/command

Retrieves the localized description of the command for a given language code, defaulting if not found.

```typescript
getLocalizedDescription(languageCode: LanguageCode | "default");
```

--------------------------------

### getCommandEntities

Source: https://grammy.dev/ref/commands/commandsflavor

Extracts and returns command entities from a list of commands.

```APIDOC
## getCommandEntities

### Description
Extracts and returns command entities from a list of commands.

### Method
(Implied function call)

### Parameters
#### Path Parameters
None

#### Query Parameters
None

#### Request Body
- **commands** (CommandGroup<C> | CommandGroup<C>[]): The list of commands to process.

### Request Example
```typescript
// Example usage
const entities = await bot.api.getCommandEntities(myCommands);
```

### Response
#### Success Response
- **BotCommandEntity[]**: An array of bot command entities.

#### Response Example
```json
{
  "example": [
    {
      "offset": 0,
      "length": 10,
      "url": ""
    }
  ]
}
```
```

--------------------------------

### Command Getter: description

Source: https://grammy.dev/ref/commands/command

A getter that returns the default description for this command.

```typescript
get description();
```

--------------------------------

### ConversationContextStorage Adapter

Source: https://grammy.dev/ref/conversations/conversationcontextstorage

Specifies the underlying storage adapter used for reading and writing raw data. It must be an instance of VersionedStateStorage.

```typescript
adapter: VersionedStateStorage<C, S>;
```

--------------------------------

### CommandGroup Middleware Method

Source: https://grammy.dev/ref/commands/commandgroup

Returns the middleware function for the CommandGroup. This can be used to integrate command handling into the bot's middleware pipeline.

```typescript
middleware();

```

--------------------------------

### andForGameQuery

Source: https://grammy.dev/ref/conversations/andextension

Filters down the wait call using another game query check. Corresponds with Conversation.waitForGameQuery.

```APIDOC
## andForGameQuery

### Description
Filters down the wait call using another game query check. Corresponds with Conversation.waitForGameQuery.

### Method
N/A (TypeScript method signature)

### Endpoint
N/A (TypeScript method signature)

### Parameters
#### Path Parameters
None

#### Query Parameters
None

#### Request Body
None

### Request Example
```typescript
andForGameQuery(trigger: MaybeArray<string | RegExp>, opts?: AndOtherwiseOptions<C>): AndPromise<GameQueryContext<C>>;
```

### Response
#### Success Response (200)
N/A (TypeScript method signature)

#### Response Example
N/A (TypeScript method signature)
```

--------------------------------

### CommandNotFound Options Parameter

Source: https://grammy.dev/ref/commands/commandnotfound

The 'opts' parameter accepts partial JaroWinklerOptions, excluding the 'language' property.

```typescript
opts: Omit<Partial<JaroWinklerOptions>, "language">
```

--------------------------------

### Wait Until with Type Predicate

Source: https://grammy.dev/ref/conversations/conversation

This snippet demonstrates using `waitUntil` with a type predicate to narrow down the context type, specifically waiting for a message with a text query.

```typescript
const ctx = await conversation.waitUntil(Context.has.filterQuery(":text"))
const text = ctx.msg.text;
```

--------------------------------

### ConversationHandleOptions

Source: https://grammy.dev/ref/conversations/conversationhandleoptions

Configuration options for creating and managing conversation handles.

```APIDOC
## Interface: ConversationHandleOptions

### Description
Options for creating a conversation handle.

### Properties
#### maxMillisecondsToWait
- **maxMillisecondsToWait** (number) - Optional - Default wait timeout.

#### parallel
- **parallel** (boolean) - Optional - `true` if this conversation can be entered while this or another conversation is already active, and `false` otherwise. Defaults to `false`.

### Methods
#### onHalt
- **onHalt**(): void | Promise<void> - Callback for when the conversation is halted.
```

--------------------------------

### Chain Waiters: Game Query and User

Source: https://grammy.dev/ref/conversations/conversation

Chains `waitForGameQuery` with `andFrom` to filter updates by both game query data and the originating user.

```typescript
const ctx = await conversation.waitForGameQuery('data')
  .andFrom(ADMIN_USER_ID)
```

--------------------------------

### Serialize Commands for Single Scope

Source: https://grammy.dev/ref/commands/commandgroup

Serializes commands for a specific scope, preparing them for `setMyCommands` calls. This is useful for applying commands to particular contexts like private chats or groups.

```typescript
toSingleScopeArgs(scope: BotCommandScope);

```

--------------------------------

### ConversationContextStorage Version

Source: https://grammy.dev/ref/conversations/conversationcontextstorage

An optional version for the data, which defaults to 0 if not specified. It can be a string or a number.

```typescript
version?: string | number;
```

--------------------------------

### Targeted Commands Option

Source: https://grammy.dev/ref/commands/commandoptions

Configures how commands targeting the bot's username are handled. Defaults to 'optional'.

```typescript
targetedCommands: "ignored" | "optional" | "required";
```

--------------------------------

### ApiBaseData Token Property

Source: https://grammy.dev/ref/conversations/apibasedata

Represents the bot's authentication token, obtained from @BotFather. This is a required string.

```typescript
token: string;
```

--------------------------------

### Command Getter: names

Source: https://grammy.dev/ref/commands/command

A getter that returns all registered names for this command.

```typescript
get names();
```

--------------------------------

### Log message on first reach

Source: https://grammy.dev/ref/conversations/conversation

Use `log()` to call `console.log` only on the first encounter. This prevents repeated logging during replays.

```typescript
log(...data: unknown[]): Promise<void>;
```

--------------------------------

### ConversationForm Constructor

Source: https://grammy.dev/ref/conversations/conversationform

Constructs a new form based on wait and skip callbacks. This is used internally to manage conversation flow.

```APIDOC
## ConversationForm Constructor

### Description
Constructs a new form based on wait and skip callbacks.

### Parameters
- **conversation** (object) - Required - An object containing `wait` and `skip` methods for managing conversation flow.
  - **conversation.wait** (function) - Required - A function that waits for a specific condition or timeout.
  - **conversation.skip** (function) - Required - A function that skips the current step in the conversation.

### Source
```typescript
ConversationForm(conversation: { wait: (opts: { maxMilliseconds?: number; collationKey?: string }) => Promise<C>; skip: (opts: { next?: boolean }) => Promise<never> });
```
```

--------------------------------

### andForCommand

Source: https://grammy.dev/ref/conversations/andextension

Filters down the wait call using another command check. Corresponds with Conversation.waitForCommand.

```APIDOC
## andForCommand

### Description
Filters down the wait call using another command check. Corresponds with Conversation.waitForCommand.

### Method
N/A (TypeScript method signature)

### Endpoint
N/A (TypeScript method signature)

### Parameters
#### Path Parameters
None

#### Query Parameters
None

#### Request Body
None

### Request Example
```typescript
andForCommand(command: MaybeArray<StringWithCommandSuggestions>, opts?: AndOtherwiseOptions<C>): AndPromise<CommandContext<C>>;
```

### Response
#### Success Response (200)
N/A (TypeScript method signature)

#### Response Example
N/A (TypeScript method signature)
```

--------------------------------

### media Form Field

Source: https://grammy.dev/ref/conversations/conversationform

Detects either a photo or a video in messages and returns the corresponding media object. Use this for general media handling. Optional callbacks can be provided.

```typescript
media(options?: FormOptions<C, PhotoSize[] | Video>);

```

--------------------------------

### build

Source: https://grammy.dev/ref/conversations/conversationform

A generic form field that can be used to build any other type of form field. This is heavily used internally and is generally not needed by users directly.

```APIDOC
## build<T, R>

### Description
Generic form field that can be used to build any other type of form field. This is heavily used internally.
Most likely, you will not need this because there is a more convenient option. However, you can still use it if the type of form field you need is not supported out of the box.

### Parameters
#### Overload 1
- **builder** (FormBuilderWithReason<C, T, R>) - Required - The form builder configuration.

#### Overload 2
- **builder** (FormBuilder<C, T>) - Required - The form builder configuration.

### Returns
- **Promise<T>** - The result of the form building process.

### Source
```typescript
// Overload 1
build<T, R>(builder: FormBuilderWithReason<C, T, R>): Promise<T>;
// Overload 2
build<T, R>(builder: FormBuilder<C, T>): Promise<T>;
```
```

--------------------------------

### ApiBaseData Options Property

Source: https://grammy.dev/ref/conversations/apibasedata

Optional configuration settings for the API client. This allows customization of the underlying API request handling.

```typescript
options?: ApiClientOptions;
```

--------------------------------

### Command Method: addToScope (Generic)

Source: https://grammy.dev/ref/commands/command

Registers the command to a generic scope. Applies the provided middleware to the command handler.

```typescript
addToScope(
  scope: BotCommandScope,
  middleware?: MaybeArray<Middleware<C>>,
  options?: Partial<CommandOptions>,
): this;
```

--------------------------------

### Basic Conversation Wait

Source: https://grammy.dev/ref/conversations/conversation

This snippet demonstrates how to use the `wait` method of the conversation handle to pause execution and wait for the next update.

```typescript
async function exmaple(conversation, ctx) {
  //                   ^ this is an instance of this class

  // This is how you can wait for updates:
  ctx = await conversation.wait()
}
```

--------------------------------

### Node.js Custom Inspect

Source: https://grammy.dev/ref/commands/commandgroup

Replaces the default `toString` method for custom inspection in the Node.js runtime environment.

```typescript
[Symbol.for("nodejs.util.inspect.custom")]();

```

--------------------------------

### Serialize Commands for setMyCommands

Source: https://grammy.dev/ref/commands/commandgroup

Serializes all registered commands into objects suitable for the `setMyCommands` API method. This can be scoped to a specific chat ID.

```typescript
toArgs(chat_id?: BotCommandScopeChat["chat_id"]);

```

--------------------------------

### Command Getter: name

Source: https://grammy.dev/ref/commands/command

A getter that returns the default name for this command.

```typescript
get name();
```

--------------------------------

### ConversationKeyStorage Adapter Property

Source: https://grammy.dev/ref/conversations/conversationkeystorage

The underlying storage adapter responsible for reading and writing raw data.

```typescript
adapter: VersionedStateStorage<string, S>;
```

--------------------------------

### UncompliantCommand Reasons Property

Source: https://grammy.dev/ref/commands/uncompliantcommand

An array of strings detailing the reasons why the command was considered uncompliant.

```typescript
reasons: string[];
```

--------------------------------

### AutoRetryOptions

Source: https://grammy.dev/ref/auto-retry/index

This interface defines the configuration options for the auto-retry plugin.

```APIDOC
## AutoRetryOptions

### Description
An interface that defines the available options for configuring the auto-retry plugin.

### Properties
(No specific properties are detailed in the source text for this interface.)
```

--------------------------------

### audio

Source: https://grammy.dev/ref/conversations/conversationform

Form field that checks for incoming audio messages and returns the audio object.

```APIDOC
## audio

### Description
Form field that checks if the incoming update contains a message or channel post with an audio message, and returns the received audio object.
Accepts an optional options object that lets you perform actions when an audio message is received, when a non-audio update is received, and more.

### Parameters
- **options** (FormOptions<C, Audio>) - Optional - Configuration options for the audio form field.

### Source
```typescript
audio(options?: FormOptions<C, Audio>);
```
```

--------------------------------

### CommandNotFound Type Parameter C

Source: https://grammy.dev/ref/commands/commandnotfound

Type parameter C represents the context, defaulting to a base Context.

```typescript
C extends Context = Context
```

--------------------------------

### Command Getter: languages

Source: https://grammy.dev/ref/commands/command

A getter that returns the registered languages for this command.

```typescript
get languages();
```

--------------------------------

### Chain Waiters: Callback Query and User

Source: https://grammy.dev/ref/conversations/conversation

Chains `waitForCallbackQuery` with `andFrom` to filter updates by both callback query data and the originating user.

```typescript
const ctx = await conversation.waitForCallbackQuery('data')
  .andFrom(ADMIN_USER_ID)
```

--------------------------------

### Enter a Conversation with Arguments

Source: https://grammy.dev/ref/conversations/conversationcontrols

Enters a conversation and passes JSON-serializable arguments. These arguments are persisted and restored when the conversation is replayed. Ensure type safety by annotating the conversation function signature.

```typescript
// Enters a conversation called "convo" upon a start command.
bot.command("start", async ctx => {
  await ctx.conversation.enter("convo", 42, "cool", { args: [2, 1, 0] })
})
async function convo(conversation, ctx, num, str, { args }) {
  // ...
}
```

--------------------------------

### waitForHears

Source: https://grammy.dev/ref/conversations/conversation

Performs a filtered wait call that is defined by a hears filter. It waits for an update and calls `skip` if the received context object does not contain text that matches the given text or regular expression. This uses the same logic as `bot.hears`. An `otherwise` action can be specified if a context object is discarded.

```APIDOC
## waitForHears

### Description
Performs a filtered wait call that is defined by a hears filter. It waits for an update and calls `skip` if the received context object does not contain text that matches the given text or regular expression. This uses the same logic as `bot.hears`. An `otherwise` action can be specified if a context object is discarded.

### Method Signature
`waitForHears(trigger: MaybeArray<string | RegExp>, opts?: OtherwiseOptions<C>): AndPromise<HearsContext<C>>`

### Parameters
#### Trigger
- **trigger** (string | RegExp | Array<string | RegExp>) - Required - The text or regular expression to match against.

#### Options
- **opts** (object) - Optional - Configuration options.
  - **otherwise** (function) - Optional - A function to execute if the context object does not match the trigger.

### Example
```typescript
const ctx = await conversation.waitForHears(["yes", "no"], {
  otherwise: ctx => ctx.reply("Please send yes or no!")
})
// Type inference works:
const answer = ctx.match
```

### Chaining
Calls to `waitForHears` can be chained with other filtered wait calls.
```typescript
const ctx = await conversation.waitForHears(["yes", "no"])
  .andFor("message:text")
const text = ctx.message.text
```
```

--------------------------------

### Chain waitForCommand with andFor

Source: https://grammy.dev/ref/conversations/conversation

Chain `waitForCommand` with `andFor` to ensure commands are only received from text messages, excluding channel posts.

```typescript
const ctx = await conversation.waitForCommand("start")
  .andFor("message")
```

--------------------------------

### video_note

Source: https://grammy.dev/ref/conversations/conversationform

Processes incoming updates for video notes. It checks if the update contains a message or channel post with a video note and returns the video note object. Optional options can be provided to handle specific actions upon receiving a video note or other updates.

```APIDOC
## video_note

### Description
Form field that checks if the incoming update contains a message or channel post with a video note, and returns the received video note object.

### Parameters
#### Request Body
- **options** (FormOptions<C, VideoNote>) - Optional - An options object that lets you perform actions when a video note is received, when a non-video note update is received, and more.
```

--------------------------------

### ConversationForm Constructor

Source: https://grammy.dev/ref/conversations/conversationform

Constructs a new form based on wait and skip callbacks. These callbacks are essential for managing the conversation flow and handling user input.

```typescript
ConversationForm(conversation: { wait: (opts: { maxMilliseconds?: number; collationKey?: string }) => Promise<C>; skip: (opts: { next?: boolean }) => Promise<never> });
```

--------------------------------

### Add Existing Command Object

Source: https://grammy.dev/ref/commands/commandgroup

Registers a Command object that has already been created independently. This allows for modular command management.

```typescript
add(command: Command<C> | Command<C>[]);

```

--------------------------------

### ConversationKeyStorage Prefix Property

Source: https://grammy.dev/ref/conversations/conversationkeystorage

An optional prefix that can be prepended to the storage key.

```typescript
prefix?: string;
```

--------------------------------

### video

Source: https://grammy.dev/ref/conversations/conversationform

Processes incoming updates for videos. It checks if the update contains a message or channel post with a video and returns the video object. Optional options can be provided to handle specific actions upon receiving a video or other updates.

```APIDOC
## video

### Description
Form field that checks if the incoming update contains a message or channel post with a video, and returns the received video object.

### Parameters
#### Request Body
- **options** (FormOptions<C, Video>) - Optional - An options object that lets you perform actions when a video is received, when a non-video update is received, and more.
```

--------------------------------

### waitForReaction

Source: https://grammy.dev/ref/conversations/conversation

Performs a filtered wait call that is defined by a reaction filter. It waits for an update and calls `skip` if the received context object does not contain the expected reaction update. This uses the same logic as `bot.reaction`. An `otherwise` action can be specified if a context object is discarded.

```APIDOC
## waitForReaction

### Description
Performs a filtered wait call that is defined by a reaction filter. It waits for an update and calls `skip` if the received context object does not contain the expected reaction update. This uses the same logic as `bot.reaction`. An `otherwise` action can be specified if a context object is discarded.

### Method Signature
`waitForReaction(reaction: MaybeArray<ReactionTypeEmoji["emoji"] | ReactionType>, opts?: OtherwiseOptions<C>): AndPromise<ReactionContext<C>>`

### Parameters
#### Reaction
- **reaction** (string | ReactionType | Array<string | ReactionType>) - Required - The reaction emoji or type to wait for.

#### Options
- **opts** (object) - Optional - Configuration options.
  - **otherwise** (function) - Optional - A function to execute if the context object does not contain the expected reaction update.

### Example
```typescript
const ctx = await conversation.waitForReaction('👍', {
  otherwise: ctx => ctx.reply("Please upvote a message!")
})
// Type inference works:
const args = ctx.messageReaction
```

### Chaining
Calls to `waitForReaction` can be chained with other filtered wait calls.
```typescript
const ctx = await conversation.waitForReaction('👍')
  .andFrom(ADMIN_USER_ID)
```
```

--------------------------------

### Chain waitForReaction with andFrom

Source: https://grammy.dev/ref/conversations/conversation

Chain `waitForReaction` with `andFrom` to filter reactions based on the sender's user ID.

```typescript
const ctx = await conversation.waitForReaction('👍')
  .andFrom(ADMIN_USER_ID)
```

--------------------------------

### external

Source: https://grammy.dev/ref/conversations/conversation

Runs a function outside of the replay engine, providing a safe way to perform side-effects like database operations or external API calls. Data returned must be serializable.

```APIDOC
## external

### Description
Runs a function outside of the replay engine. This provides a safe way to perform side-effects such as database communication, disk operations, session access, file downloads, requests to external APIs, randomness, time-based functions, and more. It requires any data obtained from the outside to be serializable.

### Method
`external<R, I = any>(op: ExternalOp<OC, R, I>["task"] | ExternalOp<OC, R, I>): Promise<R>`

### Parameters
#### Path Parameters
None

#### Query Parameters
None

#### Request Body
None

### Parameters
- **op** (ExternalOp<OC, R, I>["task"] | ExternalOp<OC, R, I>) - Required - The operation to perform outside the replay engine. This can be a function or an object with a `task` property.

### Request Example
```typescript
// Read from database
const data = await conversation.external(async () => {
  return await readFromDatabase()
});

// Write to database
await conversation.external(async () => {
  await writeToDatabase(data)
});

// Read from session
const sessionData = await conversation.external((ctx) => {
  return ctx.session.data
});

// Custom serialization
const largeNumber: bigint = await conversation.external({
  task: () => fetchCoolBigIntFromTheInternet(),
  beforeStore: (largeNumber) => String(largeNumber),
  afterLoad: (str) => BigInt(str),
});
```

### Response
#### Success Response (R)
Returns the data returned by the callback function. This data must be serializable.

#### Response Example
```typescript
// Example response based on the task function
const result = await conversation.external(async () => {
  return { message: "Success" };
});
// result will be { message: "Success" }
```
```

--------------------------------

### paidMedia

Source: https://grammy.dev/ref/conversations/conversationform

Processes incoming updates for paid media. It checks if the update contains a message or channel post with paid media and returns the paid media object. Optional options can be provided to handle specific actions upon receiving paid media or other updates.

```APIDOC
## paidMedia

### Description
Form field that checks if the incoming update contains a message or channel post with paid media, and returns the received paid media object.

### Parameters
#### Request Body
- **options** (FormOptions<C, PaidMediaInfo>) - Optional - An options object that lets you perform actions when a paid media message is received, when a non-paid media update is received, and more.
```

--------------------------------

### andForGameQuery: Filter wait calls with a game query check

Source: https://grammy.dev/ref/conversations/andextension

Filters down the wait call using another game query check. Corresponds with Conversation.waitForGameQuery.

```typescript
andForGameQuery(trigger: MaybeArray<string | RegExp>, opts?: AndOtherwiseOptions<C>): AndPromise<GameQueryContext<C>>;
```

--------------------------------

### video Form Field

Source: https://grammy.dev/ref/conversations/conversationform

Detects videos in messages and returns the video object. Suitable for handling video content. Optional callbacks can be provided for different scenarios.

```typescript
video(options?: FormOptions<C, Video>);

```

--------------------------------

### game

Source: https://grammy.dev/ref/conversations/conversationform

Processes incoming updates for games. It checks if the update contains a message or channel post with a game and returns the game object. Optional options can be provided to handle specific actions upon receiving a game or other updates.

```APIDOC
## game

### Description
Form field that checks if the incoming update contains a message or channel post with a game, and returns the received game object.

### Parameters
#### Request Body
- **options** (FormOptions<C, Game>) - Optional - An options object that lets you perform actions when a game is received, when a non-game update is received, and more.
```

--------------------------------

### media

Source: https://grammy.dev/ref/conversations/conversationform

Processes incoming updates for photos or videos. It checks if the update contains a message or channel post with a photo or video and returns the media object. Optional options can be provided to handle specific actions upon receiving media or other updates.

```APIDOC
## media

### Description
Form field that checks if the incoming update contains a message or channel post with a photo or video, and returns the received media object.

### Parameters
#### Request Body
- **options** (FormOptions<C, PhotoSize[] | Video>) - Optional - An options object that lets you perform actions when a media is received, when a non-media update is received, and more.
```

--------------------------------

### Enter a Conversation

Source: https://grammy.dev/ref/conversations/conversationcontrols

Enters a conversation with a specified identifier. The bot will run the conversation until the first wait call is reached. Arguments passed will be JSON-serialized and persisted.

```typescript
bot.command("start", async ctx => {
  await ctx.conversation.enter("convo")
})
```

--------------------------------

### setMyCommands

Source: https://grammy.dev/ref/commands/commandsflavor

Sets the provided commands for the current chat. This method cannot be called on updates that do not have a `chat` property. Calling this method with upper-cased command names registered will result in an error.

```APIDOC
## setMyCommands

### Description
Sets the provided commands for the current chat. Cannot be called on updates that don’t have a `chat` property.

[!IMPORTANT] Calling this method with upperCased command names registered, will throw

### Method
(Implied asynchronous function call)

### Parameters
#### Path Parameters
None

#### Query Parameters
None

#### Request Body
- **commands** (CommandGroup<C> | CommandGroup<C>[]): The commands to set.
- **options** (SetBotCommandsOptions): Optional settings for setting commands.

### Request Example
```typescript
// Example usage (assuming 'bot' is an instance of grammY)
await bot.api.setMyCommands(myCommands, { scope: 'chat', chatId: 123 });
```

### Response
#### Success Response
- **void**: This method does not return a value upon success.

#### Response Example
None
```

--------------------------------

### Register Commands with Telegram API

Source: https://grammy.dev/ref/commands/commandgroup

Registers all commands with the Telegram API, making them visible to clients. This method iterates through all scopes and languages to call `setMyCommands` appropriately. Note that uppercase command names will cause an error.

```typescript
setCommands({ api }: { api: Api }, options?: Partial<SetBotCommandsOptions>): Promise<void>;

```

--------------------------------

### checkpoint

Source: https://grammy.dev/ref/conversations/conversation

Creates a new checkpoint at the current point of the conversation, which can be used later with the `rewind` method.

```APIDOC
## checkpoint

### Description
Creates a new checkpoint at the current point of the conversation. This checkpoint can be passed to `rewind` in order to go back in the conversation and resume it from an earlier point.

### Method
`checkpoint(): Checkpoint`

### Parameters
None

### Request Example
```typescript
const check = conversation.checkpoint();
```

### Response
#### Success Response (Checkpoint)
Returns a `Checkpoint` object representing the current conversation state.

#### Response Example
```typescript
// check will be of type Checkpoint
const check = conversation.checkpoint();
```
```