code: def n_frames(self):
      return len(self.layers)
  
file_path: catboost/contrib/python/Pillow/py2/PIL/PsdImagePlugin.py
imports: import io
  from .None import Image, ImageFile, ImagePalette
  from ._binary import i8, i16be, i32be
label_desc: Use image node_id 2 for calling the PsdImageFile obj's underlying member method code with example usage: obj.n_frames() and returns: len