Function IsReadableStreamDefaultController

out/cli.cjs:13288–13296

(x5)

        });
      }
      function IsReadableStreamDefaultController(x5) {
        if (!typeIsObject(x5)) {
          return false;
        }
        if (!Object.prototype.hasOwnProperty.call(x5, "_controlledReadableStream")) {
          return false;
        }
        return x5 instanceof ReadableStreamDefaultController2;
      }
      function ReadableStreamDefaultControllerCallPullIfNeeded(controller) {
        const shouldPull = ReadableStreamDefaultControllerShouldCallPull(controller);
        if (!shouldPull) {