Help regarding figuring out routes in pgAdmin4

Dear PostgreSQL Hackers,

I hope this email finds you well. As I delve into the codebase, I've
encountered some challenges understanding how routes are implemented within
the application.

As I navigate through the codebase, I've encountered some challenges
understanding how routes are implemented within pgAdmin4. While I've made
efforts to study the documentation and examine the source code, I'm still
struggling to grasp certain aspects, particularly in files like roles
__init__.py.

Coming from a different stack, I'm accustomed to certain patterns and
conventions which seem to differ in Flask. Specifically, I cannot locate
the familiar @blueprint.route decorator in these files, which has left me
somewhat perplexed.

Thank you very much for your time and assistance. I look forward to hearing
from you at your earliest convenience.