class_docstr: Class C.
  
  >>> print(C())  # 2
  42
  
  
  We include some (random) encoded (utf-8) text in the text surrounding
  the example.  It should be ignored:
  
      ЉЊЈЁЂ
docstr: >>> c = C()    # 7
  >>> c.x = 12   # 8
  >>> print(c.x)  # 9
  -12
docstr_tok: [">",">",">","c","=","C","(",")","#","7",">",">",">","c.x","=","12","#","8",">",">",">","print","(","c.x",")","#","9","-12"]
code: def getx(self):
      """
      >>> c = C()    # 7
      >>> c.x = 12   # 8
      >>> print(c.x)  # 9
      -12
      """
      return -self._x
  
file_path: cpython/Lib/test/test_doctest2.py
imports: import sys
  import unittest
  from doctest import *
label_desc: Use image node_id 3 for calling the C obj's underlying member method code with example usage: obj.getx() and returns: unknown