import type { Precondition } from "./types.js";
export declare function isNotSelectionOrModificationMethod(method: string): boolean;
export type Ord = 1 | 0 | -1;
export declare function toPriority(input: string): number;
export declare function ascendPrecondition(left: Precondition, right: Precondition): Ord;
export declare function ascendPreconditionHeader(left: string, right: string): Ord;
export declare function applyPrecondition(request: Request, response: Response, precondition: Precondition): Promise<Response | void>;