class_docstr: Simple class to store the value of macros as strings.
  
  Macro is just a callable that executes a string of IPython
  input when called.
code: def __repr__(self):
      return "IPython.macro.Macro(%s)" % repr(self.value)
  
file_path: catboost/contrib/python/ipython/py3/IPython/core/macro.py
imports: import re
  from IPython.utils.encoding import DEFAULT_ENCODING
label_desc: Use image node_id 3 for calling the Macro obj's underlying member method code with example usage: obj.__repr__() and returns: unknown