Options controlling how extractMermaidBlocks scans a document.
Optional
Which code-fence markers to recognize. Defaults to both 'backtick' (```mermaid) and 'tilde' (~~~mermaid), matching CommonMark. Restrict to e.g. ['backtick'] to ignore tilde fences.
'backtick'
```mermaid
'tilde'
~~~mermaid
['backtick']
Options controlling how extractMermaidBlocks scans a document.