Place titled code fences inside <CodeGroup>. Use <CodeBlock> when code comes from an MDX component. Usage# <CodeGroup>```js JavaScriptconsole.log("hello")``````py Pythonprint("hello")```</CodeGroup><CodeBlock language="ts" filename="index.ts" lines> {"const ready = true"}</CodeBlock> <CodeBlock> also accepts icon, highlight, focus, wrap, and expandable. Example# JavaScriptPythonconsole.log("hello") index.tsconst ready = true