TODO comment copied from lib.rs:
// TODO: Scoped references that are basically references for certain files and
// store the scope name and point to the logger. Then in that scope
// the scoped ref can be used and it will just log with the scope name
// at the beginning of the log message.
//
// For example: let scoped_ref = LOGGER.scope("my_scope");
// scoped_ref.debug("Hello world!");
//
// This would log "[DEBUG][my_scope] Hello world!"
TODO comment copied from lib.rs: