src/Blocks/BlockTable.php
protected function isTableLineType(BlockInterface $block = null)
    {
        if ($block === null) {
            return false;
        }

        return $this->lineIsObjectOf($block, static::class) || strpos($block->getContent(), '|') !== false;
    }
protected function isTableLineType(BlockInterface $block = null)
    {
        if ($block === null) {
            return false;
        }

        return $this->lineIsObjectOf($block, static::class) || strpos($block->getContent(), '|') !== false;
    }
@param BlockInterface $block

@return bool