Inverse of channelKey: parse a "${kind}/${index}" key back into a ChannelId. Validates the kind and index instead of force-casting the substring, so a malformed key throws at the parse site rather than flowing on as a bogus id.
"${kind}/${index}"
Inverse of channelKey: parse a
"${kind}/${index}"key back into a ChannelId. Validates the kind and index instead of force-casting the substring, so a malformed key throws at the parse site rather than flowing on as a bogus id.