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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 load_module(self, fullname):
 """ Returns an object that lazily looks up tables and groups. """

        mod = sys.modules.get(fullname)
        if mod is not None:
            return mod

        # We're creating an object rather than a module. It's a hack, but it's approved by Guido:
        # https://mail.python.org/pipermail/python-ideas/2012-May/014969.html

        mod = _from_core_node(self._store, self._root)
        sys.modules[fullname] = mod
        return mod