/**
 * Runtime compatibility helpers for accessing TypeORM APIs that were
 * removed in TypeORM v1.0.0 (notably `Connection` and `AbstractRepository`).
 *
 * Importing these symbols statically from `typeorm` would produce
 * TypeScript errors for consumers on TypeORM v1 when `skipLibCheck` is
 * disabled, and would cause runtime crashes inside `@nestjs/typeorm`
 * because the values resolve to `undefined`.
 *
 * Resolving them lazily via `require()` keeps the package working on
 * both TypeORM 0.3.x (where the symbols still exist) and 1.0.x
 * (where they have been removed) without forcing a type dependency.
 */
type OptionalCtor = (new (...args: any[]) => any) | undefined;
/**
 * The TypeORM `Connection` class (removed in TypeORM v1.0.0, replaced by
 * `DataSource` since 0.3.0). Resolves to `undefined` on TypeORM v1+.
 */
export declare const Connection: OptionalCtor;
/**
 * The TypeORM `AbstractRepository` class (removed in TypeORM v1.0.0).
 * Resolves to `undefined` on TypeORM v1+.
 */
export declare const AbstractRepository: OptionalCtor;
export {};