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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 proxy(name, default = None):
 """ Create a proxy module. A proxy module has a default implementation, but can be redirected to other implementations with configurations. Other modules can depend on proxy modules. """

    proxymodule = _ProxyMetaClass(name, (_ProxyModule,), {'_default': default})
    proxymodule.__module__ = sys._getframe(1).f_globals.get('__name__')
    return proxymodule