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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 match(self, methods, request_method):
 """Check for a method match. :param methods: A method or tuple of methods to match against. :param request_method: The method to check for a match. :returns: An empty :class:`dict` in the case of a match, or ``None`` if there is no matching handler for the given method. Example: {} """

        if isinstance(methods, basestring):
            return {} if request_method == methods else None
        return {} if request_method in methods else None