code: func (c *Network) GetRequestPostData(requestId string) (string, error) {
  	var v NetworkGetRequestPostDataParams
  	v.RequestId = requestId
  	return c.GetRequestPostDataWithParams(&v)
  }
docs: // GetRequestPostData - Returns post data sent with the request. Returns an error when no data was sent with the request.
  // requestId - Identifier of the network request to get content for.
  // Returns -  postData - Request body string, omitting files from multipart requests