import type { StoredConnectionSecret } from "@polpo-ai/connect";
export interface ConnectionSecretStore {
    setSecret(ref: string, secret: StoredConnectionSecret): Promise<void>;
    getSecret(ref: string): Promise<StoredConnectionSecret | null>;
    deleteSecret(ref: string): Promise<void>;
}
export interface VersionedConnectionSecret {
    secret: StoredConnectionSecret;
    version: string;
}
export interface VersionedConnectionSecretStore extends ConnectionSecretStore {
    getVersioned(ref: string): Promise<VersionedConnectionSecret | null>;
    compareAndSet(ref: string, version: string, secret: StoredConnectionSecret): Promise<boolean>;
}
export interface TokenRefreshCoordinator {
    runExclusive<T>(connectionId: string, fn: () => Promise<T>): Promise<T>;
}
export declare class MemoryConnectionSecretStore implements ConnectionSecretStore {
    private readonly records;
    private readonly versions;
    setSecret(ref: string, secret: StoredConnectionSecret): Promise<void>;
    getSecret(ref: string): Promise<StoredConnectionSecret | null>;
    deleteSecret(ref: string): Promise<void>;
    getVersioned(ref: string): Promise<VersionedConnectionSecret | null>;
    compareAndSet(ref: string, version: string, secret: StoredConnectionSecret): Promise<boolean>;
}
export declare class MemoryTokenRefreshCoordinator implements TokenRefreshCoordinator {
    private readonly tails;
    runExclusive<T>(connectionId: string, fn: () => Promise<T>): Promise<T>;
}
export declare function isVersionedConnectionSecretStore(store: ConnectionSecretStore): store is VersionedConnectionSecretStore;
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