Force show spinner (opposite of anvil.server.no_loading_indicator)

Feature Requests
5

I have successfully implemented the decorator functionality:

https://anvil.works/build#clone:HO4BCOPJPAIHXBO5=5XNINH6RDK4W46IYON6BPT46

Code:

import anvil as _anvil
# from functools import wraps

class _loading_indicator:
    def __enter__(self):
        _anvil.js.call_js('setLoading', True)
        return self
    def __exit__(self, exc_type, exc_value, tb):
        _anvil.js.call_js('setLoading', False)
    def __call__(self, func):
#         @wraps(func)
        def wrapper(*args, **kw):
            with self:
                return func(*args, **kw)
        return wrapper

loading_indicator = _loading_indicator()
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