docstr: Get average pixel level for each layer
docstr_tok: ["Get","average","pixel","level","for","each","layer"]
code: def _getmean(self):
      """Get average pixel level for each layer"""
  
      v = []
      for i in self.bands:
          v.append(self.sum[i] / self.count[i])
      return v
  
file_path: catboost/contrib/python/Pillow/py2/PIL/ImageStat.py
imports: import functools
  import math
  import operator
label_desc: Use image node_id 7 for calling the Stat obj's underlying member method code with example usage: obj._getmean() and returns: v