# CBOR
## `cbor`
Reads structured data from a CBOR file.
The file must contain a valid CBOR serialization. Mappings will be
converted into Typst dictionaries, and sequences will be converted into
Typst arrays. Strings and booleans will be converted into the Typst
equivalents, null-values (`null`, `~` or empty ``) will be converted into
`{none}`, and numbers will be converted to floats or integers depending on
whether they are whole numbers.
Be aware that integers larger than 2<sup>63</sup>-1 will be converted to
floating point numbers, which may result in an approximative value.
## Parameters
### source *(required)*
A [path]($syntax/#paths) to a CBOR file or raw CBOR bytes.
## Returns
- any