class_docstr: RFC 2104 HMAC class.  Also complies with RFC 4231.
  
  This supports the API for Cryptographic Hash Functions (PEP 247).
docstr: Feed data from msg into this hashing object.
docstr_tok: ["Feed","data","from","msg","into","this","hashing","object","."]
code: def update(self, msg):
      """Feed data from msg into this hashing object."""
      inst = self._hmac or self._inner
      inst.update(msg)
  
file_path: catboost/contrib/tools/python3/src/Lib/hmac.py
imports: import warnings
  import hashlib
label_desc: Use image node_id 5 for calling the HMAC obj's underlying member method code with example usage: obj.update(msg) without return types