code: public static StreamMessageCreator creator(final String pathServiceSid, 
                                                 final String pathStreamSid, 
                                                 final Map<String, Object> data) {
          return new StreamMessageCreator(pathServiceSid, pathStreamSid, data);
      }
docs: Create a StreamMessageCreator to execute create.
  
  @param pathServiceSid The service_sid
  @param pathStreamSid The stream_sid
  @param data Stream Message body.
  @return StreamMessageCreator capable of executing the create