'Generate an instance context for the instance, the context is capable of
performing various actions.  All instance actions are proxied to the context
:returns: NumberContext for this NumberInstance
:rtype: twilio.rest.pricing.v1.voice.number.NumberContext'

@property
def _proxy(self):

    if (self._context is None):
        self._context = NumberContext(self._version, number=self._solution['number'])
    return self._context
