Method _get_query_trace

cassandra/cluster.py:5052–5056

(self, i, max_wait, query_cl)

        return []

    def _get_query_trace(self, i, max_wait, query_cl):
        trace = self._query_traces[i]
        if not trace.events:
            trace.populate(max_wait=max_wait, query_cl=query_cl)
        return trace

    def add_callback(self, fn, *args, **kwargs):
        """