AsyncParall.swift

func getStatistics(for user: User) async throws -> (Statistics, Statistics) {
    async let old = getOldUserStatistics(of: user)
    async let new = getNewUserStatistics(of: user)
    
    let awaitedOldStats = await old
    let awaitedNewStats = await new
    return (awaitedOldStats, awaitedNewStats)
}