docs: function createMessageCreative (message) {
    return new Promise (async (resolve, reject) => {
      if (!message) {
        reject('Valid message object required');      
      }
      
      let request_options = {
        'api_version': 'v2.11',
        'path': '/me/message_creatives',
        'payload': {
          'messages': [util.parseMessageProps(message)]
        }
      };
  
      try {
        let response = await this.sendGraphRequest(request_options);
        resolve(response);
      } catch (e) {
        reject(e);
      }
    });
  }