type IsAny<T> = 0 extends 1 & T ? true : false;
type Clean<T> = Exclude<T, undefined | null>;
type CollapsibleKeys<T, TPrefix extends string = ''> = IsAny<T> extends true ? TPrefix extends '' ? never : TPrefix : T extends ReadonlyArray<infer U> ? (TPrefix extends '' ? '' : TPrefix) | CollapsibleKeys<U, `${TPrefix}[${number}]`> : T extends object ? (TPrefix extends '' ? '' : TPrefix) | {
    [K in Extract<keyof T, string>]: CollapsibleKeys<T[K], TPrefix extends '' ? `${K}` : `${TPrefix}.${K}`>;
}[Extract<keyof T, string>] : never;
export type CollapsiblePaths<T> = CollapsibleKeys<Clean<T>> extends infer P ? P extends string ? P : never : never;
export {};