input: Write a python function to simulate an HTTP POST request to the given Flask application and verify the response content.
  assert simulate_post_request('Hello Flask') == 'Your Input: Hello Flask'
  assert simulate_post_request('Testing 123') == 'Your Input: Testing 123'
  assert simulate_post_request('') == 'Your Input: '
output: import requests
  from flask import Flask, request
  
  app = Flask(__name__)
  
  @app.route('/post', methods=['POST'])
  def post_route():
      data = request.get_json()
      return f"Your Input: {data['input']}"
  
  def simulate_post_request(input_text):
      url = "http://127.0.0.1:5000/post"
      response = requests.post(url, json={'input': input_text})
      return response.text