Variable MetricTypeSchemaConst

MetricTypeSchema: ZodUnion<
    readonly [
        ZodLiteral<"overall_performance">,
        ZodLiteral<"conversion_rate">,
        ZodLiteral<"brand_lift">,
        ZodLiteral<"click_through_rate">,
        ZodLiteral<"completion_rate">,
        ZodLiteral<"viewability">,
        ZodLiteral<"brand_safety">,
        ZodLiteral<"cost_efficiency">,
    ],
> = ...