@java.lang.Override

        public boolean containsUserDefinedAttributes(java.lang.String key) {
            java.lang.Class<?> keyClass = key.getClass();
            return instance.getUserDefinedAttributesMap()
                    .containsKey(key);
        }
<code>map&lt;string, .im.turms.proto.Value&gt; user_defined_attributes = 10;</code>
turms-client-kotlin/src/main/java/im/turms/client/model/proto/request/group/UpdateGroupRequest.java