src/Entity/Filter.php
public static function isGroup(array $value)
    {
        return $value === array_values($value)
            || (isset($value[self::_OR]) && count($value) === 1);
    }
public static function isGroup(array $value)
    {
        return $value === array_values($value)
            || (isset($value[self::_OR]) && count($value) === 1);
    }
public static function isGroup ( array $ value ) { return $ value === array_values ( $ value ) || ( isset ( $ value [ self :: _OR ] ) && count ( $ value ) === 1 ) ; }
Is it filter with groups?

@param array $value

@return bool
Is it filter with groups?