code: function Cmdt(opts) {
  
    this.opts         = opts || {};
    this.opts.baseDir = this.opts.baseDir || os.tmpdir();
    this.opts.debug   = this.opts.debug || false;
    this.runId        = 'cmdt-' + new Date().getTime() + '-' + process.pid;
    this._execData    = {};
  }
docs: class Cmdt