code: def insert_user_data(host_name, client_name, client_pass, user_twitter_id, topic_to_score):
      
  
      # Construct values.
      values = "usr=" + str(user_twitter_id)
  
      for topic, score in topic_to_score.items():
          values += "&type." + topic + "=%.2f" % score
  
      # Construct request.
      request = construct_request(model_type="pers",
                                  client_name=client_name,
                                  client_pass=client_pass,
                                  command="setusr",
                                  values=values)
  
      # Send request.
      send_request(host_name,
                   request)
docs: Inserts topic/score data for a user to a PServer client.
  
      Inputs: - host_name: A string containing the address of the machine where the PServer instance is hosted.
              - client_name: The PServer client name.
              - client_pass: The PServer client's password.
              - user_twitter_id: A Twitter user identifier.
              - topic_to_score: A python dictionary that maps from topic to score.