docs: def mapIdentityResponse(
          self, primarySubject, secondarySubject, vendorSpecific=None
      ):
          """CNIdentity.mapIdentity(session, subject) → boolean
          https://releases.dataone.org/online/api-
          documentation-v2.0.1/apis/CN_APIs.html#CNIdentity.mapIdentity.
  
          Args:
            primarySubject:
            secondarySubject:
            vendorSpecific:
  
          Returns:
  
          """
          mmp_dict = {
              'primarySubject': primarySubject.toxml('utf-8'),
              'secondarySubject': secondarySubject.toxml('utf-8'),
          }
          return self.POST(['accounts', 'map'], fields=mmp_dict, headers=vendorSpecific)