rnapier

import Testing
import Combine

// From https://stackoverflow.com/questions/78892734/getting-task-isolated-value-of-type-async-passed-as-a-strongly-trans/78899940#78899940
public final class AsyncFuture<Output, Failure: Error>: Publisher, Sendable {
    public typealias Promise = @Sendable (Result<Output, Failure>) -> Void

    private let work: @Sendable (@escaping Promise) async -> Void

    public init(_ work: @Sendable @escaping (@escaping Promise) async -> Void) {