upload_stix function return nothing when using in-memory file

[tomcangbk]

Hi, i got an issue when trying to upload stix2 event with in-memory file

import io
inmemoryfile = io.StringIO()
json.dump(stix_data, inmmemoryfile)
misp_event = misp.upload_stix(inmemoryfile) 

this code cannot added event and return no error also

i checked with dump stix_data to json file on disk and event added normally

PyMISP/pymisp/api.py

Line 3244 in a7446b3

def upload_stix(self, path: str | Path | BytesIO | StringIO | None = None,

pymisp version: 2.4.183