@add.command()<EOL>@proto_dataset_uri_argument<EOL>@click.argument("<STR_LIT>")<EOL>@click.argument("<STR_LIT:key>")<EOL>@click.argument("<STR_LIT:value>")<EOL>def metadata(proto_dataset_uri, relpath_in_dataset, key, value):
proto_dataset = dtoolcore.ProtoDataSet.from_uri(<EOL>uri=proto_dataset_uri,<EOL>config_path=CONFIG_PATH)<EOL>proto_dataset.add_item_metadata(<EOL>handle=relpath_in_dataset,<EOL>key=key,<EOL>value=value)<EOL>
Add metadata to a file in the proto dataset.