def METHOD_NAME(self, uri: str, data: bytes, meta: dict, overwrite_existing: bool):
    """Creates an object.
    Examples of URI:
        /state/engine/...
        /runs/approved/covid_exam.3
        /runs/pending/spleen_seg.1
    Args:
        uri: URI of the object
        data: content of the object
        meta: meta info of the object
        overwrite_existing: whether to overwrite the object if already exists
    Raises StorageException when:
        - invalid args
        - object already exists and overwrite_existing is False
        - error creating the object
    """
    pass