Function asPayload

Returns {
    <TType extends DeepRestrictToStringKeys<{ schema: string }>>(
        value: AnyNonPromise,
        config?: TypeCheckConfig,
    ): undefined | TType;
    <TType extends DeepRestrictToStringKeys<{ schema: string }>>(
        value: AnyNonPromise,
        assert: StringOrAlertFunction<T>,
        config?: TypeCheckConfig,
    ): TType;
}