import { KVStore } from "@keplr-wallet/common";
export type LegacyGlobalPermissionMap = {
    [type: string]: {
        [origin: string]: true | undefined;
    } | undefined;
};
export type LegacyPermissionMap = {
    [chainIdentifier: string]: {
        [type: string]: {
            [origin: string]: true | undefined;
        } | undefined;
    } | undefined;
};
export declare function migrate(kvStore: KVStore): Promise<Record<string, true | undefined> | undefined>;