code: def get_color(self):
      color = self.colors[self.index]
      self.index = (self.index + 1) % len(self)
      return color
  
file_path: PaddleSeg/EISeg/eiseg/util/colormap.py
imports: import os.path
  import random
  from eiseg import pjpath
label_desc: Use image node_id 2 for calling the ColorMap obj's underlying member method code with example usage: obj.get_color() and returns: color