import Foundation

public nonisolated struct MetricsClock: Sendable {
    public var now: @Sendable () -> Date = { Date() }
    public var sleep: @Sendable (TimeInterval) async throws -> Void = {
        try await Task.sleep(for: .seconds($0))
    }
    public init(
        now: @escaping @Sendable () -> Date = { Date() },
        sleep: @escaping @Sendable (TimeInterval) async throws -> Void = { try await Task.sleep(for: .seconds($0)) }
    ) {
        self.now = now
        self.sleep = sleep
    }

}