class_docstr: Implementation of ZAP authentication for zmq connections.
  
  Note:
  
  - libzmq provides four levels of security: default NULL (which the Authenticator does
    not see), and authenticated NULL, PLAIN, CURVE, and GSSAPI, which the Authenticator can see.
  - until you add policies, all incoming NULL connections are allowed.
    (classic ZeroMQ behavior), and all PLAIN and CURVE connections are denied.
  - GSSAPI requires no configuration.
docstr: Configure GSSAPI authentication
  
  Currently this is a no-op because there is nothing to configure with GSSAPI.
docstr_tok: ["Configure","GSSAPI","authentication","Currently","this","is","a","no-op","because","there","is","nothing","to","configure","with","GSSAPI","."]
code: def configure_gssapi(self, domain="*", location=None):
      """Configure GSSAPI authentication
  
      Currently this is a no-op because there is nothing to configure with GSSAPI.
      """
      pass
  
imports: import logging
  import zmq
  from zmq.utils import z85
  from zmq.utils.strtypes import bytes, unicode, b, u
  from zmq.error import _check_version
  from .certs import load_certificates
label_desc: Use image node_id 10 for calling the Authenticator obj's underlying member method code with example usage: obj.configure_gssapi(domain, location) without return types