   Returns the atom whose text representation is
   `some_binary` in UTF8 encoding.
 
+  ## Examples
+
       binary_to_atom "my_atom" #=> :my_atom
 
   """

  @doc """
  Returns a binary which corresponds to the text representation
  of `some_atom` in UTF8 encoding.

      atom_to_binary :my_atom #=> "my_atom"


  @doc """
  Works like `binary_to_atom` but the atom must exist.

  ## Examples

      :my_atom                          #=> :my_atom
      binary_to_existing_atom "my_atom" #=> :my_atom

