If one wants to use Task.sleep it needs nanoseconds for sleep parameter. This extension will convert the seconds to nanoseconds. We can use sleep with seconds function instead of nanoseconds.

Task+Extension.swift

extension Task where Success == Never, Failure == Never {
    static func sleep(seconds: TimeInterval) async throws {
        let duration = UInt64(seconds * 1_000_000_000)
        try await Task.sleep(nanoseconds: duration)
    }
}

// Usage
try await Task.sleep(seconds: 1)