/** Records the route/rpc decorators this runtime dropped, and warns about them once. Importing a module must stay side-effect free, so the drop is recorded at decoration time and reported later, at configure(). */
export declare class DroppedRouteDecorators {
    private static readonly dropped;
    private static isReported;
    /** True for the legacy (`experimentalDecorators`) call shape - under TC39 semantics decorators get `(method, context)` with no prototype to attach metadata to, so the route silently 404s; the drop is recorded instead. */
    static isLegacyCall(opts: {
        decorator: string;
        propertyKey: unknown;
    }): opts is {
        decorator: string;
        propertyKey: string | symbol;
    };
    /** Warns once per process about every route/rpc decorator this runtime dropped. */
    static report(opts: {
        logger: {
            warn: (message: string, ...args: Array<unknown>) => void;
        };
    }): void;
    /** @internal Test seam: every route/rpc decorator the runtime has dropped so far. */
    static list(): Array<string>;
}
/** @internal Published name of {@link DroppedRouteDecorators.list} - the one core test that reaches it can only do so through the package barrel. */
export declare const getDroppedRouteDecorators: () => Array<string>;
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