Feed for an instrument sometimes has quantity but not price #306
Description
The feed received for an instrument sometimes is like the below, with a buy quantity ('bq') but without the buy price ('bp'). The same is seen with sell quantity ('bs') and sell price ('sp'), and with last traded quantity ('ltt') and last traded price ('ltp').
{'ftm0': '02/01/1970 01:18:15', 'dtm1': '05/07/1971 23:36:52', 'ltt': '02/01/2026 07:43:24', 'v': '3935363', 'ltp': '990.90', 'tbq': '470680', 'tsq': '1086756', 'sp': '990.85', 'bq': '1', 'bs': '625', 'cng': '6.15', 'nc': '0.62', 'to': '3898095112.39', 'name': 'sf', 'tk': '3045', 'e': 'nse_cm', 'request_type': 'SUB'}
How should we interpret this data?