code: def getOperationName(self, ps, action):
          '''Returns operation name.
             action -- soapAction value
          '''
          method = self.root.get(_get_element_nsuri_name(ps.body_root)) or \
              self.soapAction.get(action)
          if method is None:
              raise UnknownRequestException, \
                  'failed to map request to a method: action(%s), root%s' %(action,_get_element_nsuri_name(ps.body_root))
          return methof getOperationName(self, ps, action):
          '''Returns operation name.
             action -- soapAction value
          '''
          method = self.root.get(_get_element_nsuri_name(ps.body_root)) or \
              self.soapAction.get(action)
          if method is None:
              raise UnknownRequestException, \
                  'failed to map request to a method: action(%s), root%s' %(action,_get_element_nsuri_name(ps.body_root))
          return method
docs: Returns operation name.
             action -- soapAction value