qiskit/pulse/channels/qubit.py
def drive(self) -> DriveChannel:
        """Return the primary drive channel of this qubit."""
        if self._drives:
            return self._drives[0]
        else:
            raise PulseError("No drive channels in q[%d]" % self._index)
def drive(self) -> DriveChannel:
        """Return the primary drive channel of this qubit."""
        if self._drives:
            return self._drives[0]
        else:
            raise PulseError("No drive channels in q[%d]" % self._index)
Return the primary drive channel of this qubit.