public Builder clearUserDefinedAttributes() {
            bitField0_ &= ~0x00000200;
            internalGetMutableUserDefinedAttributes().clear();
            return this;
        }
<code>map&lt;string, .im.turms.proto.Value&gt; user_defined_attributes = 10;</code>
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/request/group/UpdateGroupRequest.java