Interface EmailRule

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