Interface SlugRule

interface SlugRule {
    custom: <LenientFieldValue extends SlugValue>(
        fn: CustomValidator<LenientFieldValue>,
    ) => SlugRule;
    error: (message?: string | LocalizedValidationMessages) => SlugRule;
    info: (message?: string | LocalizedValidationMessages) => SlugRule;
    required: () => SlugRule;
    valueOfField: (path: string | string[]) => FieldReference;
    warning: (message?: string | LocalizedValidationMessages) => SlugRule;
}