class_docstr: an immutable object holding a source code fragment,
  possibly deindenting it.
class_docstr_tok: ["an","immutable","object","holding","a","source","code","fragment",",","possibly","deindenting","it","."]
docstr: return a copy of the source object with
  all lines indented by the given indent-string.
docstr_tok: ["return","a","copy","of","the","source","object","with","all","lines","indented","by","the","given","indent-string","."]
code: def indent(self, indent=" " * 4):
      """return a copy of the source object with
      all lines indented by the given indent-string.
      """
      newsource = Source()
      newsource.lines = [(indent + line) for line in self.lines]
      return newsource
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import ast
  import inspect
  import linecache
  import sys
  import textwrap
  import tokenize
  import warnings
  from ast import PyCF_ONLY_AST
  from bisect import bisect_right
  import py
  import six
label_desc: Use image node_id 7 for calling the Source obj's underlying member method code with example usage: obj.indent(indent) and returns: newsource