input: Write a python function to check if a keyword is present in the content of a given URL. Use the requests module.
  assert check_keyword_in_url('http://www.example.com', 'success') == True
  assert check_keyword_in_url('http://www.example.com', 'failure') == False
  assert check_keyword_in_url('http://www.example.com', 'example') == True
output: def check_keyword_in_url(url, keyword):
      import requests
      response = requests.get(url)
      return keyword in response.text