code: def filtered_response(request, response):
      """Format the response as a JSON string, using any filtering included in
      the request.
  
      :param request:flask.Request the original HTTP request.
      :param response:dict a dictionary to be formatted as a JSON string.
      :return: the response formatted as a string.
      :rtype:str
      """
      fields = request.args.get("fields")
      return filter_fields_from_response(fields, response)
  
imports: import base64
  import error_response
  import hashlib
  import json
  import random
  import re
label_desc: Use image node_id 2 for calling a global function with example usage: filtered_response(request, response) and returns: filter_fields_from_response