new_contents: from flask import Flask
  
  # Create Flask application
  app = Flask(__name__)
  
  @app.route('/')
  def index():
    """ Intro page of the inventory API
  
    This method will only return some welcome words.
  
    Returns:
      response: welcome words in json format and status 200
  
    Todo:
      * Finish the implementations.
      * Write the tests for this.
  
    """
    pass
  
subject: Initialize the server.py with index()