package Ġnet . pl car mel . crypt ic sequences . core . concurrency Ċ Ċ interface ĠCon currency Layer Ġ{ ĊĊĠ Ġfun Ġcreate Worker (): ĠWorker ĊĊĠ Ġfun Ġ< T > Ġfuture Of ( x : ĠT ): ĠFuture < T > ĊĊĠ Ġfun Ġ< T > Ġfreeze ( x : ĠT ): ĠT Ġ= Ġx Ċ Ċ } Ċ