class_docstr: A representation of a set of features, usually associated with a word form.
class_docstr_tok: ["A","representation","of","a","set","of","features",",","usually","associated","with","a","word","form","."]
code: def keys(self):
      return self.features.keys()
  
file_path: cltk/src/cltk/morphology/morphosyntax.py
imports: from typing import Dict, List, Optional, Tuple, Type, Union
  from cltk.core.exceptions import CLTKException
  from cltk.morphology.universal_dependencies_features import *
label_desc: Use image node_id 9 for calling the MorphosyntacticFeatureBundle obj's underlying member method code with example usage: obj.keys() and returns: self