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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 get_decoded_jwt(request):
 """ Grab jwt from jwt cookie in request if possible. Returns a decoded jwt dict if it can be found. Returns None if the jwt is not found. """

    jwt_cookie = request.COOKIES.get(jwt_cookie_name(), None)

    if not jwt_cookie:
        return None
    return jwt_decode_handler(jwt_cookie)