import { type GoogleAuthProvider } from '@mcp-z/oauth-google';
/**
 * A Google API client bound to this request's token provider.
 *
 * `@mcp-z/oauth-google` mints tokens and depends on no Google SDK, so the client
 * is built here, from this package's own SDK. That keeps one copy of
 * `google-auth-library` in the tree by construction rather than by matching pins.
 */
export declare function googleAuth(auth: GoogleAuthProvider): import("google-auth-library").OAuth2Client;