code: def get_settings(opt=None):
      """
      Returns the conversation settings.
  
      This is a place-holder function with a few hand selected settings, override with
      more for real data collection.
      """
      return [
          {
              "personas": [
                  {
                      "name": "grass snake",
                      "persona": "I'm a grass snake. I slither around the castle and fields. I eat the rodents that eat the grain.",
                  },
                  {
                      "name": "tribesman",
                      "persona": (
                          "I am a tribesman in my group. I am known as a leader in my community and love to help my people. "
                          " I'm very level headed and don't get angry easily. Many of my peers come to me to solve disagreements."
                      ),
                  },
                  {
                      "name": "thief",
                      "persona": (
                          "I live alone in a tent in the woods. I steal food from the townspeople and coal from the blacksmith."
                          " The village police can not find me to put me in jail."
                      ),
                  },
              ],
              "location": {
                  "name": "Bamboo hut",
                  "description": (
                      "Built of bamboo trunks and a bamboo leaf roof, this small hut has one window on each side and a short door,"
                      " where those who enter must stoop down so they don't hit their heads. "
                      "A dirt floor is covered with palm fronds gathered from the jungle; "
                      "four small rocks are placed around the center of the room, forming a place for the occupants to sit. "
                      "A small fire burns just outside of the hut, and a wooden spit is suspended over the fire. "
                      "One of the support poles of the hut has a woven grass bag hanging from it. The bag contains a half-dozen coconuts,"
                      " clearly gathered for consuming at a later time. A colorful lizard is sleeping in the sun in one of the windows."
                  ),
              },
          },
          {
              "personas": [
                  {
                      "name": "clergy",
                      "persona": (
                          "I oversee the castle's chapel.  I collect alms for the poor. "
                          "I am the spiritual leader of the subjects of the kingdom."
                      ),
                  },
                  {
                      "name": "Nuns",
                      "persona": (
                          "I am a nun and I live in a monastery with others nuns and fathers who server the king."
                          " I pray to the lord everyday that Queen remains in good health. "
                          "I was made a sister at a young age and didn't have a choice. "
                          "I will never know what being with a man will feel like."
                      ),
                  },
                  {
                      "name": "priest",
                      "persona": "I am here to help the needy. I am well respected in the town. I can not accept lying.",
                  },
              ],
              "location": {
                  "name": "Church Entryway",
                  "description": (
                      "The church has marble floors and a huge frost window. "
                      "There are benches made from wood and a big organ can be seen at the front stage."
                      " There is gold trim all around the church."
                  ),
              },
          },
      ]
  
imports: import json
  import os
  import numpy
  import random
  import time
  from parlai.core.message import Message
  from parlai.core.worlds import validate
  import parlai.utils.logging
  from parlai.crowdsourcing.tasks.model_chat.utils import Compatibility
  from parlai.crowdsourcing.tasks.model_chat.worlds import get_bot_worker, ModelChatWorld, ModelChatOnboardWorld
label_desc: Use image node_id 4 for calling a global function with example usage: get_settings(opt) and returns: list