import type { EmailLoginOptions } from "./email.js";
export type LoginOptions = EmailLoginOptions & {
    token?: string;
    oauth?: boolean;
};
export type LoginChannelSelection = {
    channel: "email";
} | {
    channel: "oauth";
} | {
    channel: "token";
    token: string;
} | {
    error: string;
};
/**
 * Picks the sign-in channel and rejects flag combinations whose extra options
 * would otherwise be accepted and quietly ignored.
 */
export declare function selectLoginChannel(opts: LoginOptions): LoginChannelSelection;
//# sourceMappingURL=loginChannel.d.ts.map