type MigrationTransaction = {
    schema: {
        hasTable(tableName: string): Promise<boolean>;
        hasColumn(tableName: string, columnName: string): Promise<boolean>;
    };
    (tableName: string): {
        where(columnName: string, value: string): {
            update(values: Record<string, string>): Promise<unknown>;
        };
    };
};
type Migration = {
    name: string;
    up(trx: MigrationTransaction): Promise<void>;
    down(): Promise<void>;
};
/**
 * Migrates persisted admin UI language from the legacy Danish code `dk` to ISO 639-1 `da`.
 */
export declare const migrateAdminPreferedLanguageDkToDa: Migration;
export {};
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