ENUM
enum Us_onlySortByInput {POPULATION_DESCCONFIRMED_DAILY_DESCCOUNTRY_ASCCOUNTRY_ISO3_DESCCOUNTY_ASC_ID_ASCCONFIRMED_ASCCOUNTRY_CODE_DESCFIPS_ASCCOMBINED_NAME_ASCCONFIRMED_DAILY_ASCCOUNTRY_DESCCOUNTRY_ISO2_ASCCOUNTRY_CODE_ASCCOUNTRY_ISO2_DESCCOUNTRY_ISO3_ASCCOUNTY_DESCDATE_ASCDATE_DESCDEATHS_DAILY_ASCPOPULATION_ASCSTATE_DESCUID_ASCUID_DESCCOMBINED_NAME_DESCCONFIRMED_DESCDEATHS_DESCDEATHS_DAILY_DESCSTATE_ASC_ID_DESCDEATHS_ASCFIPS_DESC}