import { AgentMessage } from '@credo-ts/core';
/**
 * Inner `constraints.limits` body — bytes/document caps the requester
 * would like enforced.
 */
export declare class ProposeLimits {
    maxDocs?: number;
    maxBytes?: number;
    maxDocBytes?: number;
}
export declare class ProposeConstraints {
    retention?: string;
    ttlSeconds?: number;
    limits?: ProposeLimits;
}
export interface ProposeMessageOptions {
    id?: string;
    purpose: string;
    participants: string[];
    constraints?: ProposeConstraints | Record<string, unknown>;
    backendPrefs?: string[];
    indexSchema?: string[];
}
/**
 * Spec § propose — propose creating a shared vault.
 *
 * @see https://didcomm.org/vaults/1.0/propose
 */
export declare class ProposeMessage extends AgentMessage {
    constructor(options: ProposeMessageOptions);
    readonly type: string;
    static readonly type: import("@credo-ts/core").ParsedMessageType;
    purpose: string;
    participants: string[];
    constraints?: ProposeConstraints | Record<string, unknown>;
    backendPrefs: string[];
    indexSchema: string[];
}