## format_bioc_json()


Documents as one BioC JSON collection.


Usage

``` python
format_bioc_json(
    docs,
    *,
    offset_unit="utf8",
    label_key="type",
    concept_key="identifier",
    indent=None,
    lossy="warn"
)
```


Annotations and relations go back where they were read from (`bioc_level`); everything else is placed in the passage containing its start, or at document level.


## Parameters


`docs: Iterable[Document]`  
The documents.

`offset_unit: OffsetUnit = ``"utf8"`  
The unit to write offsets in (UTF-8 bytes per the specification).

`label_key: str = ``"type"`  
The annotation infon for the label.

`concept_key: str = ``"identifier"`  
The infon for concepts that did not come from BioC.

`indent: int | None = None`  
JSON indentation; one line when None.

`lossy: Literal[``"warn", `<span class="st">`"ignore"``]`</span>` = ``"warn"`  
`"warn"` once about information BioC cannot carry, or `"ignore"`.