# tinker.types.ImageAssetPointerChunk ## *class* [**tinker.types.ImageAssetPointerChunk**](https://github.com/thinking-machines-lab/tinker/blob/main/src/tinker/types/image_asset_pointer_chunk.py#L8)(*[StrictBase](https://github.com/thinking-machines-lab/tinker/blob/main/src/tinker/_models.py#L76)*) **Fields:** - [**format**](https://github.com/thinking-machines-lab/tinker/blob/main/src/tinker/types/image_asset_pointer_chunk.py#L9) (*Literal['png', 'jpeg']*) – Image format - [**location**](https://github.com/thinking-machines-lab/tinker/blob/main/src/tinker/types/image_asset_pointer_chunk.py#L12) (*str*) – Path or URL to the image asset - [**expected_tokens**](https://github.com/thinking-machines-lab/tinker/blob/main/src/tinker/types/image_asset_pointer_chunk.py#L15) (*int | None*) – Expected number of tokens this image represents. This is only advisory: the tinker backend will compute the number of tokens from the image, and we can fail requests quickly if the tokens does not match expected_tokens. - [**type**](https://github.com/thinking-machines-lab/tinker/blob/main/src/tinker/types/image_asset_pointer_chunk.py#L21) (*Literal['image_asset_pointer']*)