import type { DecisionPresentation, DecisionPresentationBlock, HumanDecisionChannelRequest, HumanDecisionRequest } from "./types.js";
export declare const MAX_PRESENTATION_CODE_UNITS = 64000;
export declare const MAX_PRESENTATION_BLOCKS = 256;
export declare const MAX_PRESENTATION_ITEMS = 256;
export declare const MAX_PRESENTATION_STRING_CODE_UNITS = 16000;
export declare const MAX_PRESENTATION_TRANSPORT_PARTS = 20;
export type DecisionDocumentSegment = {
    kind: "title" | "summary" | DecisionPresentationBlock["kind"] | "choices";
    text: string;
};
export declare function normalizeDecisionPresentation(value: unknown): DecisionPresentation;
export declare function decisionPresentationDigest(presentation: DecisionPresentation): string;
export declare function validateHumanDecisionRequestIntegrity(request: HumanDecisionRequest): HumanDecisionRequest;
export declare function humanDecisionChannelRequest(request: HumanDecisionRequest): HumanDecisionChannelRequest;
export declare function valueDecisionPresentation(value: unknown): DecisionPresentation;
export declare function decisionDocumentSegments(request: HumanDecisionChannelRequest): DecisionDocumentSegment[];
export declare function decisionPresentationFingerprint(request: HumanDecisionChannelRequest): string;
export declare function digestCanonical(value: unknown): string;