### Get Supported Locales

Source: https://hexdocs.pm/holidefs/0.4.0/Holidefs.html

Returns a map of all supported locales, where keys are locale codes and values are locale names.

```Elixir
locales() :: map()
```

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

### Get Current Language

Source: https://hexdocs.pm/holidefs/0.4.0/Holidefs.html

Returns the language currently set for translating holiday names. The return type is a string.

```Elixir
get_language() :: String.t()
```

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

### Get Holidays Between Dates

Source: https://hexdocs.pm/holidefs/0.4.0/Holidefs.html

Retrieves all holidays for a given locale within a specified date range. Returns a tuple with either {:ok, holidays} on success or {:error, reason} on failure.

```Elixir
between(locale_code(), Date.t(), Date.t(), Holidefs.Options.attrs()) ::
  {:ok, [Holidefs.Holiday.t()]} | {:error, error_reasons()}
```

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

### Get Holidays on a Specific Date

Source: https://hexdocs.pm/holidefs/0.4.0/Holidefs.html

Retrieves all holidays for a given locale on a specific date. Returns a tuple with either {:ok, holidays} on success or {:error, reason} on failure.

```Elixir
on(locale_code(), Date.t(), Holidefs.Options.attrs()) ::
  {:ok, [Holidefs.Holiday.t()]} | {:error, error_reasons()}
```

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

### Get Holidays for a Year

Source: https://hexdocs.pm/holidefs/0.4.0/Holidefs.html

Retrieves all holidays for a given locale within a specific year. Returns a tuple with either {:ok, holidays} on success or {:error, reason} on failure.

```Elixir
year(locale_code(), integer(), Holidefs.Options.attrs()) ::
  {:ok, [Holidefs.Holiday.t()]} | {:error, error_reasons()}
```

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

### Get Regions for Locale

Source: https://hexdocs.pm/holidefs/0.4.0/Holidefs.html

Retrieves a list of regions associated with a given locale. Returns a tuple with either {:ok, regions} on success or {:error, reason} on failure.

```Elixir
get_regions(locale_code()) :: {:ok, [String.t()]} | {:error, error_reasons()}
```

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

### locales/0

Source: https://hexdocs.pm/holidefs/0.4.0/Holidefs.html

Returns a map of all supported locales in the system. The map keys are locale codes and the values are the locale names.

```APIDOC
## locales/0

### Description
Returns a map of all the supported locales.

### Function Signature
`locales() :: map()

### Returns
- A map where keys are locale codes (atoms or binaries) and values are the names of the locales (strings).
```

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

### on/3

Source: https://hexdocs.pm/holidefs/0.4.0/Holidefs.html

Retrieves all holidays for a specified locale on a given date. It returns a tuple containing either an 'ok' status with a list of holidays or an 'error' status with a reason.

```APIDOC
## on/3

### Description
Returns all the holidays for the given locale on the given date. If succeed returns a `{:ok, holidays}` tuple, otherwise returns a `{:error, reason}` tuple.

### Function Signature
`on(locale_code(), Date.t(), Holidefs.Options.attrs()) :: {:ok, [Holidefs.Holiday.t()]} | {:error, error_reasons()}

### Parameters
- **locale**: The locale code for which to retrieve holidays.
- **date**: The specific date for which to retrieve holidays.
- **opts**: Optional attributes for filtering holidays.
```

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

### between/4

Source: https://hexdocs.pm/holidefs/0.4.0/Holidefs.html

Retrieves all holidays for a specified locale within a given date range. It returns a tuple containing either an 'ok' status with a list of holidays or an 'error' status with a reason.

```APIDOC
## between/4

### Description
Returns all the holidays for the given locale between start and finish dates. If succeed returns a `{:ok, holidays}` tuple, otherwise returns a `{:error, reason}` tuple.

### Function Signature
`between(locale_code(), Date.t(), Date.t(), Holidefs.Options.attrs()) :: {:ok, [Holidefs.Holiday.t()]} | {:error, error_reasons()}

### Parameters
- **locale**: The locale code for which to retrieve holidays.
- **start**: The start date of the range.
- **finish**: The end date of the range.
- **opts**: Optional attributes for filtering holidays.
```

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

### year/3

Source: https://hexdocs.pm/holidefs/0.4.0/Holidefs.html

Retrieves all holidays for a specified locale within a given year. It returns a tuple containing either an 'ok' status with a list of holidays or an 'error' status with a reason.

```APIDOC
## year/3

### Description
Returns all the holidays for the given year. If succeed returns a `{:ok, holidays}` tuple, otherwise returns a `{:error, reason}` tuple.

### Function Signature
`year(locale_code(), integer(), Holidefs.Options.attrs()) :: {:ok, [Holidefs.Holiday.t()]} | {:error, error_reasons()}

### Parameters
- **locale**: The locale code for which to retrieve holidays.
- **year**: The year for which to retrieve holidays.
- **opts**: Optional attributes for filtering holidays.
```

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

### get_language/0

Source: https://hexdocs.pm/holidefs/0.4.0/Holidefs.html

Retrieves the current language setting used for translating holiday names.

```APIDOC
## get_language/0

### Description
Returns the language to translate the holiday names to.

### Function Signature
`get_language() :: String.t()

### Returns
- The current language code as a string.
```

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

### set_language/1

Source: https://hexdocs.pm/holidefs/0.4.0/Holidefs.html

Sets the language to be used for translating holiday names. To use native language names, set the language to `:orig`.

```APIDOC
## set_language/1

### Description
Sets the language to translate the holiday names to. To use the native language names, you can set the language to `:orig`.

### Function Signature
`set_language(atom() | String.t()) :: nil

### Parameters
- **locale**: The language code (atom or string) to set for translations. Use `:orig` for native names.
```

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

### Error Reasons Type

Source: https://hexdocs.pm/holidefs/0.4.0/Holidefs.html

Defines the possible reasons for an error when interacting with Holidefs.

```Elixir
error_reasons() :: :no_def | :invalid_date
```

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

### get_regions/1

Source: https://hexdocs.pm/holidefs/0.4.0/Holidefs.html

Retrieves a list of regions associated with a given locale. It returns a tuple containing either an 'ok' status with a list of regions or an 'error' status with a reason.

```APIDOC
## get_regions/1

### Description
Returns the list of regions from the given locale. If succeed returns a `{:ok, regions}` tuple, otherwise returns a `{:error, reason}` tuple.

### Function Signature
`get_regions(locale_code()) :: {:ok, [String.t()]} | {:error, error_reasons()}

### Parameters
- **locale**: The locale code for which to retrieve regions.

### Returns
- A tuple `{:ok, regions}` on success, where `regions` is a list of strings.
- A tuple `{:error, reason}` on failure, where `reason` is an `error_reasons()`.
```

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

### Locale Code Type

Source: https://hexdocs.pm/holidefs/0.4.0/Holidefs.html

Defines the type for a locale code, which can be an atom or a binary string.

```Elixir
locale_code() :: atom() | binary()
```

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

### Set Translation Language

Source: https://hexdocs.pm/holidefs/0.4.0/Holidefs.html

Sets the language used for translating holiday names. Accepts an atom or string. Use :orig to set the original language.

```Elixir
set_language(atom() | String.t()) :: nil
```

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