In The above mentioned-mentioned circumstance, when waiting on network I/O, a perform can provide us a container, a promise that it'll fill the container with the value if the Procedure completes. We maintain on to the future object and when It truly is fulfilled, we can easily connect with a https://alphawireless.com/future-proofing-american-utilities-why-900-mhz-is-critical-for-utility-communications/