Signature of the callback used to remove a member from the group. This should perform the necessary operations in the underlying IM protocol to cause the member to be removed.
An object implementing the group interface with this mixin
The handle of the contact to be removed
A message to be sent if the protocol supports it
Signature of the callback used to remove a member from the group. This should perform the necessary operations in the underlying IM protocol to cause the member to be removed.