def _get_response_ms(self):
response_timedelta = now() - self.log['<STR_LIT>']<EOL>response_ms = int(response_timedelta.total_seconds() * <NUM_LIT:1000>)<EOL>return max(response_ms, <NUM_LIT:0>)<EOL>
Get the duration of the request response cycle is milliseconds.
In case of negative duration 0 is returned.