def cbsa_to_location_id(cbsa_code: str) -> str:
    """Turns a CBSA code into a location_id.

    For information about how these identifiers are brought into the CAN code see
    https://github.com/covid-projections/covid-data-public/tree/main/data/census-msa
    """
    return f"iso1:us#cbsa:{cbsa_code}"