This file is a temporary file so that the directory /docs/projects/api/reference will exist when the API ref docs are generated by DocGen in anyone's client.

In your client, this file will be replaced with the API ref docs when you run: blaze run //google/firebase/service:docGen which pulls from the proto files in the google3/google/firebase/service/ directory.

After the ref docs are officially submitted in a separate CL, this file will be automatically and permanently deleted.