class_docstr: Provides a simple interface to the difflib module.
  
  The purpose of this simple interface is to offer a limited subset of the
  difflib functionality as a command line interface.
code: def context_diff(self, lines=3):
      return difflib.context_diff(
          self.fromlines,
          self.tolines,
          self._fromfile,
          self._tofile,
          self.fromdate,
          self.todate,
          n=lines,
      )
  
file_path: python-fire/examples/diff/diff.py
imports: import difflib
  import os
  import time
  import fire
label_desc: Use image node_id 5 for calling the DiffLibWrapper obj's underlying member method code with example usage: obj.context_diff(lines) and returns: difflib