window.showQuickPick(items).then((value) => {
			if(value) {
				outputChannel.appendLine('');
				outputChannel.appendLine(`Killing process ${value.label} (pid: ${value.pid})`);
				outputChannel.appendLine('');
				kill(value.pid, 'SIGTERM');
			}
		});

 return new Promise((resolve, reject) => {
   treeKill(pid, 'SIGTERM', err => {
     if (err) {
       reject();
     } else {
       resolve();
     }
   });
 });

                bundlerProcess.on("exit", async () => {

                    electronProcess.removeAllListeners("exit");
                    // tslint:disable-next-line:no-console
                    console.info("Webpack dev server exited, terminating.");

                    const deferred = createDeferred();
                    treeKill(electronProcess.pid, "SIGHUP", () => deferred.resolve());
                    await deferred.promise;
                });

  return new Promise((resolve, reject) => {
    kill(pid, signal, err => {
      if (err) {
        debug('error while killing process tree for %d: %O', pid, err);
        return reject(err);
      }

      resolve();
    });
  });

 kill: () => {
   kill(task.pid);
 }

 setTimeout(() => {
     kill(proc.pid, 'SIGTERM', () => {
         expect(exitCode).not.toBeNull();
         done();
     });
 }, 1000);