import type { MiddlewareInput } from './middleware-registry.js';
import type { HttpMethod, Middleware } from './types.js';
export declare function collectMiddlewareLabels(middlewareInputs: MiddlewareInput[]): string[];
export declare function qualifiesForJsonFastPath(method: HttpMethod, middlewareInputs: MiddlewareInput[]): boolean;
export declare function qualifiesForJsonFastPathLabels(method: HttpMethod, labels: string[]): boolean;
export declare function qualifiesForJsonFastPathResolved(method: HttpMethod, labels: string[], middleware: Middleware[]): boolean;
export declare function filterFastPathMiddleware(middleware: Middleware[]): Middleware[];
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