Method onFinally

github-actions/saucelabs/set-saucelabs-env.js:2097–2106

()

          return this[kHandler].onError(error);
        }
        onFinally() {
          if (this.errorHandler) {
            this.body.off("error", this.errorHandler);
            this.errorHandler = null;
          }
          if (this.endHandler) {
            this.body.off("end", this.endHandler);
            this.endHandler = null;
          }
        }
        addHeader(key, value) {
          processHeader(this, key, value);
          return this;