def _lambda_risk_mapper(risk_level: int) -> str:
    """Helper methods
    Parameters
    ----------
    risk_level: int
        number from range 0-4 represents risk factor for given vault
    Returns
    -------
    string:
        text representation of risk
    """

    mappings = {0: "Non Eligible", 1: "Least", 2: "Low", 3: "Medium", 4: "High"}
    return mappings.get(risk_level, "Non Eligible")