Measure elapsed time for Swift function

code.swift

private func measureElapsedTime(_ operation: () throws -> Void) throws -> Double {
    let startTime = DispatchTime.now()
    try operation()
    let endTime = DispatchTime.now()

    let elapsedTime = endTime.uptimeNanoseconds - startTime.uptimeNanoseconds
    let elapsedTimeInMilliSeconds = Double(elapsedTime) / 1_000_000.0

    return elapsedTimeInMilliSeconds
}