import type { KeyringAdapter } from '../../service/facade.js';
export declare class MacOSKeychainKeyring implements KeyringAdapter {
    private readonly memoryStore;
    private readonly serviceName;
    constructor(serviceName?: string);
    getSecret(key: string): Promise<string | null>;
    setSecret(key: string, secret: string): Promise<void>;
    setSecretIfAbsent(key: string, secret: string): Promise<boolean>;
    deleteSecret(key: string): Promise<void>;
}
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