ENUM
enum Us_onlySortByInput {FIPS_DESCCOUNTRY_ISO2_DESCCOUNTRY_DESCCOUNTRY_ASCDEATHS_DESCCOUNTRY_CODE_ASC_ID_ASCCOUNTRY_ISO3_ASCCOUNTRY_ISO3_DESCCOUNTY_ASCCOMBINED_NAME_DESCDEATHS_ASC_ID_DESCFIPS_ASCCOMBINED_NAME_ASCCOUNTRY_ISO2_ASCUID_ASCPOPULATION_ASCCONFIRMED_DESCSTATE_DESCCOUNTRY_CODE_DESCDATE_ASCDATE_DESCPOPULATION_DESCCONFIRMED_ASCCOUNTY_DESCSTATE_ASCUID_DESC}