code: def finish(self):
          
  
          self.unset_env()
          self.cov.stop()
          self.cov.combine()
          self.cov.save()
  
          if self.is_collocated:
              # If we are collocated then just inform the master of our
              # data file to indicate that we have finished.
              self.config.slaveoutput['cov_slave_node_id'] = self.nodeid
          else:
              # If we are not collocated then add the current path
              # and coverage data to the output so we can combine
              # it on the master node.
  
              # Send all the data to the master over the channel.
              self.config.slaveoutput['cov_slave_path'] = self.topdir
              self.config.slaveoutput['cov_slave_node_id'] = self.nodeid
              self.config.slaveoutput['cov_slave_lines'] = self.cov.data.lines
              self.config.slaveoutput['cov_slave_arcs'] = self.cov.data.arcs
docs: Stop coverage and send relevant info back to the master.