@java.lang.Override
    public boolean hasDeleteGroupIndex() {
        return ((bitField0_ & 0x00000004) != 0);
    }
<code>optional int32 delete_group_index = 4;</code>

@return Whether the deleteGroupIndex field is set.
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/request/user/relationship/UpdateRelationshipRequest.java