import type { MiddlewareInput } from './middleware-registry.js';
import type { MiddlewareGroupable, RouteGroupBuilder } from './route-group.js';
export interface RouteGroupOptions {
    prefix?: string;
    middleware?: MiddlewareInput | MiddlewareInput[];
    /** Name prefix applied to routes registered inside the group. */
    name?: string;
    /** Alias for `name` (Laravel-style route name prefix). */
    as?: string;
}
export declare function normalizeMiddlewareInput(middleware?: MiddlewareInput | MiddlewareInput[]): MiddlewareInput[];
/** Flatten `middleware('a', 'b')` and `middleware(['a', 'b'])` to the same list. */
export declare function flattenMiddlewareInputs(...middleware: MiddlewareInput[]): MiddlewareInput[];
export declare function applyRouteGroupOptions(builder: RouteGroupBuilder, options: RouteGroupOptions): MiddlewareGroupable;
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