private void ensureConversationSettingsListIsMutable() {
            if ((bitField0_ & 0x00000001) == 0) {
                conversationSettingsList_ = new java.util.ArrayList<>(conversationSettingsList_);
                bitField0_ |= 0x00000001;
            }
        }
Protobuf type {@code im.turms.proto.ConversationSettingsList}
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/model/conversation/ConversationSettingsList.java