Getting Dash longcallback details - plotly-dash

Question

just beginning with Dash 2.0 from plotly. Mainly to take advantage of longcallbacks. I try to get callback's id without success (i.e. the id I see in the worker when executing long call). Also struggling to get its state, ready(), successful() etc.
What I've got so far:
#app.long_callback(
output=Output("paragraph_id", "children"),
inputs=Input("button_id", "n_clicks"),
running=[
(Output("button_id", "disabled"), True, False),
(Output("cancel_button_id", "disabled"), False, True),
(
Output("paragraph_id", "style"),
{"visibility": "hidden"},
{"visibility": "visible"},
),
(
Output("progress_bar", "style"),
{"visibility": "visible"},
{"visibility": "hidden"},
),
],
cancel=[Input("cancel_button_id", "n_clicks")],
progress=[Output("progress_bar", "value"), Output("progress_bar", "max")],
prevent_initial_call=True
)
def update_progress(set_progress, n_clicks):
currentProgress = check_progress.delay()
i = 0
total = 15
while currentProgress.ready() == False:
time.sleep(1)
print("currentProgress.STATE")
print(currentProgress.state)
set_progress((str(i + 1), str(total)))
i += 1
return [f"Clicked {n_clicks} times" + " " + currentProgress.id]
#celery_app.task(bind=True)
def check_progress(self):
time.sleep(15)
return
I can manage to get these when executing celery task - check_progress(). How do I get id of update_progress() long callback?