import { IOperationMetadata } from "../structures/IOperationMetadata";
/**
 * Carries the compile-time operation metadata the SDK / Swagger / e2e
 * generators read through `Reflect.getMetadata("nestia/OperationMetadata")`.
 *
 * The `@nestia/sdk` native transform injects this decorator as a synthesized
 * AST node, so its argument is a single JSON string literal rather than an
 * object literal — keeping the constructed node tree minimal. The string is
 * parsed once here at module-evaluation time. A pre-parsed `IOperationMetadata`
 * object is still accepted for hand-written or test usage.
 */
export declare function OperationMetadata(metadata: IOperationMetadata | string): MethodDecorator;