def get_channel(self, channel):
"""Parse and retrieve channel from ch string.
Args:
channel (str): Channel to match
Returns:
(Channel, int): Matched channel
Raises:
PulseError: Is raised if valid channel is not matched
"""
match = self.chan_regex.match(channel)
if match:
prefix, index = match.group(1), int(match.group(2))
if prefix == channels.DriveChannel.prefix:
return channels.DriveChannel(index, buffer=self.buffer)
elif prefix == channels.MeasureChannel.prefix:
return channels.MeasureChannel(index, buffer=self.buffer)
elif prefix == channels.ControlChannel.prefix:
return channels.ControlChannel(index, buffer=self.buffer)
raise PulseError('Channel %s is not valid' % channel)
def get_channel(self, channel: str) -> channels.PulseChannel:
"""Parse and retrieve channel from ch string.
Args:
channel: Channel to match
Returns:
Matched channel
Raises:
QiskitError: Is raised if valid channel is not matched
"""
match = self.chan_regex.match(channel)
if match:
prefix, index = match.group(1), int(match.group(2))
if prefix == channels.DriveChannel.prefix:
return channels.DriveChannel(index)
elif prefix == channels.MeasureChannel.prefix:
return channels.MeasureChannel(index)
elif prefix == channels.ControlChannel.prefix:
return channels.ControlChannel(index)
raise QiskitError("Channel %s is not valid" % channel)