def convert_string_bools_to_bool(parameters):
    """ Change string bool values to bool()s.
    """
    new_parameters = parameters.copy()
    # Convert all boolean options to proper booleans
    for parameterKey in new_parameters:
        if (new_parameters[parameterKey]).lower() == "true":
            new_parameters[parameterKey] = True
        elif (new_parameters[parameterKey]).lower() == "false":
            new_parameters[parameterKey] = False
    return new_parameters