Given flag values, returns the input to be given to checker.

    Args:
      flag_values: flags.FlagValues, the FlagValues instance to get flags from.
    Returns:
      dict, with keys() being self.lag_names, and value for each key
      being the value of the corresponding flag (string, boolean, etc).

def _get_input_to_checker_function(self, flag_values):
    """Given flag values, returns the input to be given to checker.

    Args:
      flag_values: flags.FlagValues, the FlagValues instance to get flags from.
    Returns:
      dict, with keys() being self.lag_names, and value for each key
      being the value of the corresponding flag (string, boolean, etc).
    """
    return dict([key, flag_values[key].value] for key in self.flag_names)