'Sets the token in the DataContainer to point to the variable specified
in token_path. Usually args will be one of:
* (\'id\',) - When the data container doesn\'t support repeated params
* (\'id\', 3) - When it does
:raises: An exception when the DataContainer does NOT contain the
specified path in *args to find the variable
:return: The token if we were able to set it in the DataContainer'

def set_token(self, token_path):

    return self._mutant.get_dc().set_token(token_path)
