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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 confirm_redirect_uri(self, client_id, code, redirect_uri, client, request, *args, **kwargs):
 """Ensure that the authorization process represented by this authorization code began with this 'redirect_uri'. If the client specifies a redirect_uri when obtaining code then that redirect URI must be bound to the code and verified equal in this method, according to RFC 6749 section 4.1.3. Do not compare against the client's allowed redirect URIs, but against the URI used when the code was saved. :param client_id: Unicode client identifier. :param code: Unicode authorization_code. :param redirect_uri: Unicode absolute URI. :param client: Client object set by you, see ``.authenticate_client``. :param request: OAuthlib request. :type request: oauthlib.common.Request :rtype: True or False Method is used by: - Authorization Code Grant (during token request) """

        raise NotImplementedError('Subclasses must implement this method.')