code: def __api_POST(self, endpoint, data, print_info=None):
      if not print_info:
          print_info = "API::POST(" + endpoint + ")"
  
      # Convert data to str
      data_str = ""
      for x, y in data.items():
          data_str += '"' + x + '":"' + y + '",'
      data_str = ("{" + data_str[:-1] + "}").encode("utf-8")
      data = data_str
  
      return self.__api_call(requests.post, endpoint, print_info, data)
  
imports: import json
  import os
  from requests.auth import HTTPBasicAuth
  import requests
label_desc: Use image node_id 5 for calling the ReadMeSession obj's underlying member method code with example usage: obj.__api_POST(endpoint, data, print_info) and returns: self