import { type UnlockMethod } from './bus';
export type PasswordProvider = {
    getPassword(promptText: string): Promise<string>;
};
export type UnlockProvider = {
    selectMethod(methods: UnlockMethod[]): Promise<string>;
};
export type GrantProvider = {
    requestGrant(paths: string[], current?: string[], manifests?: any[]): Promise<void>;
};
export type DeviceKeyProvider = (deviceId: string) => Promise<Uint8Array>;
export type DeviceKeyStorageProvider = {
    get: (key: string) => Promise<string | null>;
    set: (key: string, value: string) => Promise<void>;
    delete?: (key: string) => Promise<void>;
};
export type SshKeyProvider = (keyId: string) => Promise<{
    privateKey: string;
    passphrase?: string;
}>;
export declare const defaultPasswordProvider: PasswordProvider;
export declare const defaultUnlockProvider: UnlockProvider;
export declare const defaultGrantProvider: GrantProvider;
export declare const defaultDeviceKeyProvider: DeviceKeyProvider;
export declare const defaultDeviceKeyStorageProvider: DeviceKeyStorageProvider;
export declare const defaultSshKeyProvider: SshKeyProvider;
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