    this._cbfinal = (allowed, methodsLeft, isPartial) => {
      if (!this._finalResponse) {
        this._finalResponse = true;
        cb(this, allowed, methodsLeft, isPartial);
      }
    };
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.