export interface PRNG {
  (): number
}
export interface ULID {
  (seedTime?: number): string
}
export interface LibError extends Error {
  source: string
}
export declare function replaceCharAt(
  str: string,
  index: number,
  char: string,
): string
export declare function incrementBase32(str: string): string
export declare function randomChar(prng: PRNG): string
export declare function encodeTime(now: number, len: number): string
export declare function encodeRandom(len: number, prng: PRNG): string
export declare function decodeTime(id: string): number
export declare function detectPrng(allowInsecure?: boolean, root?: any): PRNG
export declare function factory(currPrng?: PRNG): ULID
export declare function monotonicFactory(currPrng?: PRNG): ULID
export declare const ulid: ULID