[Python] Azure functions get multi file uploads

I am trying to count the total no: of files uploaded to Azure Functions (Python). Tried uploading multiple files via postman but the AZ Func always reads only the first file and count is always 1. Why is that? Please help.

for input_file in req.files.values():
filename = input_file.filename
logging.info('Filename: %s' % filename)

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