public Builder setAreGroupMessages(boolean value) {
            copyOnWrite();
            instance.setAreGroupMessages(value);
            return this;
        }
<code>optional bool are_group_messages = 2;</code>

@param value The areGroupMessages to set.
@return This builder for chaining.
turms-client-kotlin/src/main/java/im/turms/client/model/proto/request/message/QueryMessagesRequest.java