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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 names(self):
 """The names referenced in this code object. Names come from instructions like LOAD_GLOBAL or STORE_ATTR where the name of the global or attribute is needed at runtime. """

        # We must sort to preserve the order between calls.
        # The set comprehension is to drop the duplicates.
        return tuple(sorted({
            instr.arg for instr in self.instrs if instr.uses_name
        }))