Determine if the wsdl contains a method.

    Args:
      method_name: The name of the method to search.

    Returns:
      True if the method is in the WSDL, otherwise False.

def _WsdlHasMethod(self, method_name):
    """Determine if the wsdl contains a method.

    Args:
      method_name: The name of the method to search.

    Returns:
      True if the method is in the WSDL, otherwise False.
    """
    return method_name in self.suds_client.wsdl.services[0].ports[0].methods