[Core] Ability to dynamically update flags for a standalone instance

[abhinavsingh]

Motivation here is that developers would like to update proxy.py instance config on the fly. While this is possible in the embedded mode (programmatically), but not for standalone instance (daemon) mode.

[Wikidepia]

How to dynamically update flags programmatically? I can't seem to find it.

Thank you!

[abhinavsingh]

Which flag do you wish to override at runtime?

[Wikidepia]

I would like to update proxy_pool flags