code: def __init__(self):
      self.headers = {
          "Authorization": f"Bearer {self.WHATSAPP_API_TOKEN}",
          "Content-Type": "application/json",
      }
      self.API_URL = self.API_URL + self.WHATSAPP_CLOUD_NUMBER_ID
  
file_path: llama-recipes/demo_apps/llama_chatbot.py
imports: import langchain
  from langchain.llms import Replicate
  from flask import Flask
  from flask import request
  import os
  import requests
  import json
label_desc: Use image node_id 1 to create a new WhatsAppClient object  with example: obj = WhatsAppClient()