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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_serializer_class(self, view, method_func):
 """ Try to get the serializer class from view method. If view method don't have request serializer, fallback to serializer_class on view class """

        if hasattr(method_func, 'request_serializer'):
            return getattr(method_func, 'request_serializer')

        if hasattr(view, 'serializer_class'):
            return getattr(view, 'serializer_class')

        if hasattr(view, 'get_serializer_class'):
            return getattr(view, 'get_serializer_class')()

        return None