RETRIEVE,
    CLASS      = OD,
    TYPE       = AN,
    STREAM     = OPER,
    EXPVER     = 0001,
    REPRES     = GG,
    LEVTYPE    = SFC,
    PARAM      = 164,
    DATE       = 20250416,
    TIME       = 0000,
    STEP       = 0,
    DOMAIN     = G,
    TARGET     = data.reference 