code: func (c *Fetch) FulfillRequest(requestId string, responseCode int, responseHeaders []*FetchHeaderEntry, body string, responsePhrase string) (*gcdmessage.ChromeResponse, error) {
  	var v FetchFulfillRequestParams
  	v.RequestId = requestId
  	v.ResponseCode = responseCode
  	v.ResponseHeaders = responseHeaders
  	v.Body = body
  	v.ResponsePhrase = responsePhrase
  	return c.FulfillRequestWithParams(&v)
  }
docs: // FulfillRequest - Provides response to the request.
  // requestId - An id the client received in requestPaused event.
  // responseCode - An HTTP response code.
  // responseHeaders - Response headers.
  // body - A response body.
  // responsePhrase - A textual representation of responseCode. If absent, a standard phrase mathcing responseCode is used.