def function_04(parameter_01, parameter_02, parameter_03):
    """
    Function description.

    Parameters
    ----------
    parameter_01 : type
        Description.

    parameter_02 : type
        Description.

    parameter_03 : type
        Description.

    Returns
    -------
    return_01
        Description.
    """

    return_01 = parameter_01 + parameter_02 + parameter_03
    
    return return_01