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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 _default_bridge(self):
 """ Get an instance of the ENBridge object using ctypes. """

        objc = self.objc
        ENBridge = objc.objc_getClass('ENBridge')
        return objc.objc_msgSend(ENBridge, objc.sel_registerName('instance'))