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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 mine_block(self, *args: Any, **kwargs: Any) -> BaseBlock: """ Mine the current block. Proxies to self.pack_block method. """

        packed_block = self.pack_block(self.block, *args, **kwargs)

        final_block = self.finalize_block(packed_block)

        # Perform validation
        self.validate_block(final_block)

        return final_block