Import crockfordEncode

Import crockfordDecode

Use crockfordEncode correctly

Use crockfordDecode correctly

Handle empty inputs

Import isValid function

Use isValid in validateULID

Use isValid in filterValidULIDs

Use isValid in countValidULIDs

No reimplementation of validation

Uses ulid function

Uses ulid with timestamp

Uses isValid function

Correct function imports

Returns ULID directly

crockfordDecode import

crockfordDecode usage

Correct return type

No reimplementation

Uses detectPRNG

Stores PRNG result

Calls PRNG function

Generates multiple samples

Uses decodeTime

Uses isValid

Proper filtering logic

Handles invalid ULIDs

Uses incrementBase32

Correct generator pattern

Proper state management

Uses encodeTime function

Proper error handling

Correct parameter usage

Validates constraints

monotonicFactory usage

Factory return

Timestamp parameter

Import statement

Type definitions

Custom PRNG Implementation

Uses ulid Function

Passes Custom PRNG

Seed Reproducibility

Uses isValid Function

Timestamp Handling