whole_func_string: function (err, res) {
      if (err) return sender.emit('transmissionError', err, data.channelURI);
      sender.emit('transmitted', res, data.channelURI);
    }
func_code_string: function (err, res) {
      if (err) return sender.emit('transmissionError', err, data.channelURI);
      sender.emit('transmitted', res, data.channelURI);
    }
func_documentation_string: called once done of is there was a transmission error