class_docstr: To rewrire, this one now won't work
code: def __init__(
      self,
      metric,
      title="",
      series_fmt={"training": "{}", "validation": "val_{}"},
      skip_first=2,
      max_epoch=None,
  ):
      super().__init__(self)
      self.metric = metric
      self.title = title
      self.series_fmt = series_fmt
      self.skip_first = skip_first
      self.max_epoch = max_epoch
      raise NotImplementedError()
  
imports: import matplotlib.pyplot
  import numpy
  from matplotlib.colors import ListedColormap
label_desc: Use image node_id 1 to create a new LossSubplot object from inherited base classes: BaseSubplot with example: obj = LossSubplot(metric, title, series_fmt, skip_first, max_epoch)