qiskit/pulse/timeslots.py
def ch_start_time(self, *channels: List[Channel]) -> int:
        """Return earliest start time in this collection.

        Args:
            *channels: Channels over which to obtain start_time.
        """
        intervals = list(itertools.chain(*(self._table[chan] for chan in channels
                                           if chan in self._table)))
        if intervals:
            return min((interval.begin for interval in intervals))
        return 0
def ch_start_time(self, *channels: List[Channel]) -> int:
        """Return earliest start time in this collection.

        Args:
            *channels: Channels over which to obtain start_time.
        """
        intervals = list(itertools.chain(*(self._table[chan] for chan in channels
                                           if chan in self._table)))
        if intervals:
            return min((interval.begin for interval in intervals))
        return 0
Return earliest start time in this collection.

        Args:
            *channels: Channels over which to obtain start_time.