const internalAliasKey: unique symbol = Symbol('INTERNAL_ALIAS_KEY');
const hostIDKey: unique symbol = Symbol('HOST_ID');
const byExternalAlias: unique symbol = Symbol('SELECTORS_BY_EXTERNAL_ALIAS_STORAGE');
const byInternalAlias: unique symbol = Symbol('SELECTORS_BY_INTERNAL_ALIAS_STORAGE');

export { internalAliasKey, hostIDKey, byExternalAlias, byInternalAlias };