Check whether the AppProfile already exists.

        :rtype: bool
        :returns: True if the AppProfile exists, else False.

def exists(self):
        """Check whether the AppProfile already exists.

        :rtype: bool
        :returns: True if the AppProfile exists, else False.
        """
        try:
            self.instance_admin_client.get_app_profile(self.name)
            return True
        # NOTE: There could be other exceptions that are returned to the user.
        except NotFound:
            return False