code: def run(self, command, env={}, path=None,
              uid=None, gid=None, usePTY=0, childFDs=None):
          
          deferred = defer.Deferred()
          processProtocol = _SummaryProcessProtocol(deferred)
          d = defer.maybeDeferred(self.execute, processProtocol, command, env,
                                  path, uid, gid, usePTY, childFDs)
          d.addErrback(deferred.errback)
          return deferred
docs: Execute a command and return the results of the completed run.