get Undelivered Member Count
Returns the number of member's that haven't received the given message. This excludes the current logged-in User and the Sender of the message. It will always be zero if the passed on message is an AdminMessage, or if this channel is a super group channel.
Return
Number of undelivered member count. Zero if it has delivered the message to all members.
Since
3.0.136
Parameters
message
The message.