def __init__(
        self, client: "Argilla", dataset: "Dataset", mapping: Optional[Dict[str, Union[str, Sequence[str]]]] = None
    ):
        """Initializes a DatasetRecords object with a client and a dataset.
        Args:
            client: An Argilla client object.
            dataset: A Dataset object.
        """
        self.__client = client
        self.__dataset = dataset
        self._mapping = mapping or {}
        self._api = self.__client.api.records
Initializes a DatasetRecords object with a client and a dataset.
        Args:
            client: An Argilla client object.
            dataset: A Dataset object.
        
argilla/src/argilla/records/_dataset_records.py