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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 configure_scope(self, callback=None):
 # noqa """Reconfigures the scope."""


        client, scope = self._stack[-1]
        if callback is not None:
            if client is not None:
                callback(scope)

            return None

        @contextmanager
        def inner():
            if client is not None:
                yield scope
            else:
                yield Scope()

        return inner()