import type { OAuthAuth } from '../../api/provider-config.js';
type OAuthAuthExtended = OAuthAuth & {
    rawType?: string;
    oauthProviderId?: string;
    tokenFile?: string;
};
export declare class AuthModeUtils {
    static normalizeAuthMode(type: unknown): 'apikey' | 'oauth';
    static resolveOAuthProviderId(type: unknown): string | undefined;
    static ensureOAuthProviderId(auth: OAuthAuthExtended, extensions?: Record<string, unknown>): string;
    static ensureOAuthProviderIdLegacy(type: unknown): string;
}
export {};