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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def after_request(response):
 """Modifies the response object prior to sending it to the client. Used to add CORS headers to the request Args: response (response):
 Flask response object Returns: `None` """

    response.headers.add('Access-Control-Allow-Origin', '*')
    response.headers.add('Access-Control-Allow-Headers', 'Content-Type,Authorization')
    response.headers.add('Access-Control-Allow-Methods', 'GET,PUT,POST,DELETE')
    return response