$channelID[channel?]
ID of this channel or of another one.
Values
channel- Optional. A channel mention, name or ID, this channel if empty.
Example
$channelID[rules]A long number like 1428930027566112768
$channelID[channel?]ID of this channel or of another one.
channel$channelID[rules]A long number like 1428930027566112768