code: def __init__(self):
      self.axis = 1
      super(LossValueMetric, self).__init__(
          "lossvalue",
          axis=self.axis,
          output_names=None,
          label_names=None,
      )
      self.losses = []
  
file_path: insightface/alignment/heatmap/metric.py
imports: import mxnet
  import numpy
  import math
  import cv2
  from config import config
label_desc: Use image node_id 1 to create a new LossValueMetric object from inherited base classes: mx.metric with example: obj = LossValueMetric()