code: def post(self, service, data):
          
          url = self._url_format(service)
          data = Base._data_to_json(data)
          # Add content-type for body in POST.
          headers = {'content-type': 'application/json'}
          return self.rest_action(self._session.post, url,
                                  data=data, headers=headers)
docs: Generic POST operation for sending data to Learning Modules API.
  
          Data should be a JSON string or a dict.  If it is not a string,
          it is turned into a JSON string for the POST body.
  
          Args:
              service (str): The endpoint service to use, i.e. gradebook
              data (json or dict): the data payload
  
          Raises:
              requests.RequestException: Exception connection error
              ValueError: Unable to decode response content
  
          Returns:
              list: the json-encoded content of the response