code: def buildColorcetSubMenu(self):
      # colorcet colormaps with shorter/simpler aliases
      source = "colorcet"
      import colorcet
  
      names = list(colorcet.palette_n.keys())
      self.buildSubMenu(names, source)
  
imports: import importlib.util
  import re
  import numpy
  from ..None import colormap
  from ..None import functions
  from ..graphicsItems.GradientPresets import Gradients
  from ..Qt import QtCore, QtGui, QtWidgets
label_desc: Use image node_id 7 for calling the ColorMapMenu obj's underlying member method code with example usage: obj.buildColorcetSubMenu() without return types