def add_call(self, call: record_schema.RecordAppCall):
        """
        Add the given call to the currently tracked call list.
        """
        with self.lock:
            # NOTE: This might override existing call record which happens when
            # processing calls with awaitable or generator results.
            self.calls[call.call_id] = call

        Add the given call to the currently tracked call list.
        
src/core/trulens/core/instruments.py