type UnionToIntersection<U> = (U extends unknown ? (k: U) => void : never) extends (k: infer I) => void ? I : never;
type UnionToOvlds<U> = UnionToIntersection<U extends unknown ? (f: U) => void : never>;
type PopUnion<U> = UnionToOvlds<U> extends (a: infer A) => void ? A : never;
export type UnionConcat<U extends string, Sep extends string> = PopUnion<U> extends infer SELF ? SELF extends string ? Exclude<U, SELF> extends never ? SELF : `${UnionConcat<Exclude<U, SELF>, Sep>}${Sep}${SELF}` | UnionConcat<Exclude<U, SELF>, Sep> | SELF : never : never;
export type Expand<T> = T extends infer O ? {
    [K in keyof O]: O[K];
} : never;
export type ExpandRecursively<T> = T extends Record<string, any> ? T extends infer O ? {
    [K in keyof O]: ExpandRecursively<O[K]>;
} : never : T;
export {};