Function pipeline

github-actions/browserstack/set-browserstack-env.js:10608–10616

(opts, handler)

              statusCode,
              headers,
              opaque,
              body: this.res,
              context
            });
          } catch (err) {
            this.res.on("error", util.nop);
            throw err;
          }
          if (!body || typeof body.on !== "function") {
            throw new InvalidReturnValueError("expected Readable");
          }
          body.on("data", (chunk) => {