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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 isinstance(self, instance, class_name):
 """Check if a BaseNode is an instance of a registered dynamic class"""

        if isinstance(instance, BaseNode):
            klass = self.dynamic_node_classes.get(class_name, None)
            if klass:
                return isinstance(instance, klass)
            # Not an instance of a class in the registry
            return False
        else:
            raise TypeError("This function can only be used for BaseNode objects")