def METHOD_NAME(self):
    _content_value, _builder = self.new_content_builder(
        self.ctx.args,
        typ=AAZObjectType,
        typ_kwargs={"flags": {"required": True, "client_flatten": True}}
    )
    _builder.set_prop("deviceFamily", AAZStrType, ".device_family")
    _builder.set_prop("firmwareVersion", AAZStrType, ".firmware_version")
    _builder.set_prop("vendor", AAZStrType, ".vendor")
    return self.serialize_content(_content_value)