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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 _is_covered(self, global_state: GlobalState) -> bool: """ Checks if the instruction for the given global state is already covered"""

        bytecode = global_state.environment.code.bytecode
        index = global_state.mstate.pc
        return self.instruction_coverage_plugin.is_instruction_covered(bytecode, index)