class_docstr: Pretty printer to print the graph structure used with the `visit` method of a Variable.
  
  Attributes:
      functions (list of dict): List of functions of which element is the dictionary.
          The (key, value) pair is the (`name`, function name), (`inputs`, list of input variables),
          and (`outputs`, list of output variables) of a function.
code: def get_scope_name(self, x):
      params = nn.get_parameters()
      values = list(params.values())
      keys = list(params.keys())
      if x in values:
          idx = values.index(x)
          scope = "/".join(keys[idx].split("/")[:-1])
      else:
          scope = None
      return scope
  
file_path: nnabla/python/src/nnabla/utils/inspection/pretty_print.py
imports: from __future__ import absolute_import
  import nnabla
  import numpy
label_desc: Use image node_id 2 for calling the PrettyPrinter obj's underlying member method code with example usage: obj.get_scope_name(x) and returns: scope