# FILE_VOLUME_BLOCKS

`import { FILE_VOLUME_BLOCKS } from "destack:fs/binding";`

Request block count fields.

```ds title="FILE_VOLUME_BLOCKS"
const FILE_VOLUME_BLOCKS: FileVolumeMask
```

[language/library/src/fs/binding/volume.ds:16](https://github.com/destack-sh/destack/blob/main/language/library/src/fs/binding/volume.ds#L16)