// TODO: https://maximegel.medium.com/what-are-guard-clauses-and-how-to-use-them-350c8f1b6fd2 // https://stavroskasidis.com/blog/2017/tips-and-tricks-1-guard-clauses/ // https://gist.github.com/phillippelevidad/3284fed13d0c926005cb09cccac01794 // https://gist.github.com/PradeepLoganathan/bc4ae7daf64d5db4c4912000148011e2 // https://github.com/FishBasketGordo/Creelio.Framework/blob/master/Creelio.Framework/Guard.cs