### Install SharedPreferences.jl

Source: https://github.com/raphasampaio/sharedpreferences.jl/blob/main/README.md

Demonstrates how to add the SharedPreferences.jl package to a Julia environment using the package manager.

```julia
julia> ] add SharedPreferences
```

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

### Example Usage of SharedPreferences.jl

Source: https://github.com/raphasampaio/sharedpreferences.jl/blob/main/README.md

Shows how to create an encrypted SharedPreferences instance, store various data types (string, integer, float, boolean, array), and retrieve them. It highlights the use of `InstanceEncrypted` and the `set!` and `get` functions.

```julia
using SharedPreferences

# encryption key for secure storage
key = "JjL9kX9BRNsHa6ykI8s8eV9ZX2Wb1Fsf"

# create an encrypted instance of SharedPreferences
instance = SharedPreferences.InstanceEncrypted(key)

# store data of various types
set!(instance, "string", "value")
set!(instance, "integer", 42)
set!(instance, "float", 3.14)
set!(instance, "boolean", true)
set!(instance, "array", [1, 2, 3])

# retrieve stored data
instance = SharedPreferences.InstanceEncrypted(key)

stored_string = get(instance, "string")
stored_integer = get(instance, "integer")
stored_float = get(instance, "float")
stored_boolean = get(instance, "boolean")
stored_array = get(instance, "array")

println("Stored string: ", stored_string)
println("Stored integer: ", stored_integer)
println("Stored float: ", stored_float)
println("Stored boolean: ", stored_boolean)
println("Stored array: ", stored_array)
```

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