refactor: Improve var name. b/131773884 (#1262)
refactor: Improve var name. b/131773884 (#1262)

* refactor: Improve var name. b/131773884

* Update index.js

GoogleCloudPlatform/nodejs-docs-samples,GoogleCloudPlatform/nodejs-docs-samples,GoogleCloudPlatform/nodejs-docs-samples,GoogleCloudPlatform/nodejs-docs-samples