docs: public CreateIdentityProviderRequest withIdpIdentifiers(String... idpIdentifiers) {
          if (this.idpIdentifiers == null) {
              setIdpIdentifiers(new java.util.ArrayList<String>(idpIdentifiers.length));
          }
          for (String ele : idpIdentifiers) {
              this.idpIdentifiers.add(ele);
          }
          return this;
      }