class_docstr: MesageSender is a wrapper around the facebook messenger requests that simplifies the
  process of sending content.
class_docstr_tok: ["MesageSender","is","a","wrapper","around","the","facebook","messenger","requests","that","simplifies","the","process","of","sending","content","."]
code: def send_read(self, receiver_id):
      self.send_sender_action(receiver_id, "mark_seen")
  
file_path: ParlAI/parlai/chat_service/services/messenger/message_sender.py
imports: import json
  import logging
  import requests
  import parlai.chat_service.utils.logging
label_desc: Use image node_id 3 for calling the MessageSender obj's underlying member method code with example usage: obj.send_read(receiver_id) without return types