code: func ReadMessage(c *messagebird.Client, messageID string) (*Message, error) {
  	message := &Message{}
  	if err := request(c, message, http.MethodGet, messagesPath+"/"+messageID, nil); err != nil {
  		return nil, err
  	}
  
  	return message, nil
  }
docs: // ReadMessage gets a single message based on its ID.