code: def __init__(self, channel_id):
      super(ChannelNotFound, self).__init__(
          "Channel '{id}' not found.".format(id=channel_id)
      )
  
imports: from neptune.common.exceptions import STYLES
  from neptune.legacy import envs
  from neptune.legacy.exceptions import NeptuneException
label_desc: Use image node_id 1 to create a new ChannelNotFound object from inherited base classes: NeptuneApiException with example: obj = ChannelNotFound(channel_id)