code: public HFCAAffiliation createDecendent(String name) throws InvalidArgumentException, AffiliationException {
          if (this.deleted) {
              throw new AffiliationException("Affiliation has been deleted");
          }
          validateAffiliationNames(name);
          return new HFCAAffiliation(this.name + "." + name, this.client);
      }
docs: The identities affected during request
  @param name Name of the child affiliation
  
  @return The requested child affiliation
  @throws InvalidArgumentException
  @throws AffiliationException