TestAnnotation

declare function compose<A>(left: Either<Chunk<A>, number>, right: Either<Chunk<A>, number>): Either<Chunk<A>, number>

declare const fibers: TestAnnotation<Either.Either<Chunk.Chunk<MutableRef.MutableRef<SortedSet.SortedSet<Fiber.RuntimeFiber<unknown, unknown>>>>, number>>

declare const ignored: TestAnnotation<number>

declare function isTestAnnotation(u: unknown): u is TestAnnotation<unknown>

declare function make<A>(identifier: string, initial: A, combine: (a: A, b: A) => A): TestAnnotation<A>

declare const repeated: TestAnnotation<number>

declare const retried: TestAnnotation<number>

declare const tagged: TestAnnotation<HashSet.HashSet<string>>

interface TestAnnotation<in out A> extends Equal {
  readonly [TestAnnotationTypeId]: {
    readonly _A: Invariant<A>;
  };
  readonly identifier: string;
  readonly initial: A;
  combine(a: A, b: A): A;
}

declare const TestAnnotationTypeId: unique symbol

type TestAnnotationTypeId = typeof TestAnnotationTypeId