export declare function strEnum<T extends string>(...enumValues: T[]): Readonly<{
    [K in T]: K;
}>;
export declare type StringKeyedObject = {
    [key: string]: any;
};
export declare function indexedStrEnum<O extends StringKeyedObject>(values: {
    [K in keyof O]: {
        v: O[K];
    };
}): O & {
    readonly [key: string]: any;
};
export declare function boxEnum<T extends string>(val: T): {
    readonly v: T;
};