 start(sh: ProcArgs; cmd: seq[string]; prefixCmd = none(seq[string]);
      toAdd: set[ProcOption] = {}; toRemove: set[ProcOption] = {};
      input = none(AsyncIoBase); output = none(AsyncIoBase);
      outputErr = none(AsyncIoBase); env = none(ProcEnv);
      envModifier = none(ProcEnv); workingDir = none(string);
      processName = none(string); logFn = none(LogFn);
      onErrorFn = none(OnErrorFn)): AsyncProc</a></li>
          </ul></dd>
<dt><a name="startProcess" href="#startProcess"><span>startProc