@java.lang.Override

    public boolean containsUserDefinedAttributes(java.lang.String key) {
        java.lang.Class<?> keyClass = key.getClass();
        return internalGetUserDefinedAttributes().containsKey(key);
    }
<code>map&lt;string, .im.turms.proto.Value&gt; user_defined_attributes = 12;</code>
turms-client-kotlin/src/main/java/im/turms/client/model/proto/model/group/Group.java