`metadata` refers to a hash map (or key value) context that provides some high-level information about a model, dataset or Space. That information can include details such as the model's `pipeline type`, `model_id` or `model_description`. For more detail you can take a look to these guides: [Model Card](https://huggingface.co/docs/hub/model-cards#model-card-metadata), [Dataset Card](https://huggingface.co/docs/hub/datasets-cards#dataset-card-metadata) and [Spaces