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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 import_module(self, name):
 """Import a module into the bridge."""

        if name not in self._objects:
            module = _import_module(name)
            self._objects[name] = module
            self._object_references[id(module)] = name
        return self._objects[name]