Event Retrieval With PyMISP.search Returns Empty List

Hi,

I am having an issue with the retrieving events with PyMISP. When I use the search() function from PyMISP class with the date_to argument, the returned list of events is always empty even though the queried events (those created before date_to) are present on MISP. Specifically, here is my implmentation:

misp = ExpandedPyMISP(misp_url, misp_key, misp_verifycert)
results_a = misp.search(date_to=datetime.now()+timedelta(days=1))

Theoretically, all events present in MISP should be returned, as all events are guranteed to be created before the date_to time. However, on execution, results_a is [].

Is this a potential bug? Alternatively, am I doing something wrong with this search?

Start by reproducing the reported ExpandedPyMISP.search() call with date_to and inspect how that entry point handles the argument and the returned API response. Compare the empty result with events known to exist before the supplied date; done means identifying whether this is a client bug or incorrect usage and documenting or correcting the behavior.