docstr: Get RMS for each layer
docstr_tok: ["Get","RMS","for","each","layer"]
code: def _getrms(self):
      """Get RMS for each layer"""
  
      v = []
      for i in self.bands:
          v.append(math.sqrt(self.sum2[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 9 for calling the Stat obj's underlying member method code with example usage: obj._getrms() and returns: v