private void setRelatedUserId(long value) {
        bitField0_ |= 0x00000002;
        relatedUserId_ = value;
    }
<code>optional int64 related_user_id = 2;</code>

@param value The relatedUserId to set.
turms-client-kotlin/src/main/java/im/turms/client/model/proto/model/user/UserRelationship.java