 
   @doc """
   Wraps the argument in a list.
+
   If the argument is already a list, returns the list.
   If the argument is `nil`, returns an empty list.
 


  @doc """
  Returns a list with a replaced value at the specified `index`.
  Negative indices indicate an offset from the end of the list.
  If `index` is out of bounds, the original `list` is returned.

  ## Examples

  end

  @doc """
  Receives a `list` of tuples and replaces the item
  identified by `key` at `position`.

  If the item does not exist, it is added to the end of the `list`.

  ## Examples

