 
     return  unless @stateMachine
 
-    {channelId} = @workspaceData
+    { channelId } = @workspaceData
 
     if channelId and typeof channelId is 'string' and channelId.length
       return  unless @stateMachine.state is 'NotStarted'

      throwError err  if err

    @removeWorkspaceSnapshot()
    @broadcastMessage type: 'ParticipantWantsToLeave'
    callback()



    # lines would be executed as well. attn to @szkl.
    return callback null  unless usernames.length

    { setMachineUser } = envHelpers

    setMachineUser @mountedMachine, @workspaceData, usernames, share, (err) =>
      return callback err  if err
