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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 get(self):
 """ Get a JSON-ready representation of this SubscriptionTracking. :returns: This SubscriptionTracking, ready for use in a request body. :rtype: dict """

        subscription_tracking = {}
        if self.enable is not None:
            subscription_tracking["enable"] = self.enable

        if self.text is not None:
            subscription_tracking["text"] = self.text.get()

        if self.html is not None:
            subscription_tracking["html"] = self.html.get()

        if self.substitution_tag is not None:
            subscription_tracking["substitution_tag"] = \
                self.substitution_tag.get()
        return subscription_tracking