import { Config, DatabaseUpgradeAPI } from "@canvas-js/modeldb";
export declare const namespace = "canvas";
export declare const version = 4;
export declare const baseVersion: {
    canvas: number;
};
export declare function upgrade(upgradeAPI: DatabaseUpgradeAPI, oldConfig: Config, oldVersion: Record<string, number>, newVersion: Record<string, number>): Promise<boolean>;
export declare const initialUpgradeVersion: {
    canvas: number;
};
export declare const initialUpgradeSchema: {
    $sessions: {
        message_id: "primary";
        did: "string";
        public_key: "string";
        address: "string";
        expiration: "integer?";
        $indexes: string[];
    };
    $actions: {
        message_id: "primary";
        did: "string";
        name: "string";
        timestamp: "integer";
        $indexes: string[];
    };
    $effects: {
        key: "primary";
        value: "bytes?";
        branch: "integer";
        clock: "integer";
    };
    $dids: {
        did: "primary";
    };
};