private void setDeleteGroupIndex(int value) {
        bitField0_ |= 0x00000004;
        deleteGroupIndex_ = value;
    }
<code>optional int32 delete_group_index = 4;</code>

@param value The deleteGroupIndex to set.
turms-client-kotlin/src/main/java/im/turms/client/model/proto/request/user/relationship/UpdateRelationshipRequest.java