class Sites:
    """
    Helper class to consistently label each sampling site in the model.
    """

    RHO = "rho"

    MU_COUNTRY = "mu_country"
    MU_UTLA = "mu_utla"
    MU_BETA = "mu_beta"
    SIGMA_BETA = "sigma_beta"

    BETA = "beta"

    A0 = "a0"
    B0 = "b0"
    C0 = "c0"
    BC0 = "bc0"

    A = "a"
    B = "b"
    C = "c"

    A1 = "a1"
    B1 = "b1"
    C1 = "c1"
    BETA1 = "beta1"

    MU = "mu"

    LAMBDA_LINEAGE = "lambda_lineage"
    LAMBDA = "lambda"

    R_1 = "R_1"
    R = "R"
    P = "p"

    CASES = "specimen"
    LINEAGE = "lineage"

    TRANSMISSIBILITY = "transmissibility"
    GROWTH_RATE = "growth_rate"

    LOC = "_loc"
    SCALE = "_scale"
