availableLocales: {
    en: LocaleDefinition;
    en-AU: LocaleDefinition;
    en-BZ: LocaleDefinition;
    en-CA: LocaleDefinition;
    en-CB: LocaleDefinition;
    en-GB: LocaleDefinition;
    en-IE: LocaleDefinition;
    en-IN: LocaleDefinition;
    en-JM: LocaleDefinition;
    en-MT: LocaleDefinition;
    en-MY: LocaleDefinition;
    en-NZ: LocaleDefinition;
    en-PH: LocaleDefinition;
    en-SG: LocaleDefinition;
    en-TT: LocaleDefinition;
    en-US: LocaleDefinition;
    en-ZA: LocaleDefinition;
    en-ZW: LocaleDefinition;
    es: LocaleDefinition;
    es-AR: LocaleDefinition;
    es-BO: LocaleDefinition;
    es-CL: LocaleDefinition;
    es-CO: LocaleDefinition;
    es-CR: LocaleDefinition;
    es-DO: LocaleDefinition;
    es-EC: LocaleDefinition;
    es-ES: LocaleDefinition;
    es-GT: LocaleDefinition;
    es-HN: LocaleDefinition;
    es-MX: LocaleDefinition;
    es-NI: LocaleDefinition;
    es-PA: LocaleDefinition;
    es-PE: LocaleDefinition;
    es-PR: LocaleDefinition;
    es-PY: LocaleDefinition;
    es-SV: LocaleDefinition;
    es-US: LocaleDefinition;
    es-UY: LocaleDefinition;
    es-VE: LocaleDefinition;
} = ...

The available locales for this package. New locales can be provided by the user at runtime, but the ones presented here are included by default.