code: public function limit($from, $count): IWithLimit
  	{
  		return $this->setPart(CmdUpdate::PART_LIMIT, true, ($from ? array($from, $count) : $count));
  	}
docs: Limit the query for given set.
  @param int $from Select form this row.
  @param int $count Maximum number of rows to select.
  @return IWithLimit|static