import type { Environment } from '../config/environments.js';
import type { StoredCredentials } from '../config/credentials.js';
export interface DeviceCodeGrant {
    deviceCode: string;
    userCode: string;
    verificationUri: string;
    verificationUriComplete: string;
    expiresInSeconds: number;
    intervalSeconds: number;
}
export interface DeviceFlowDeps {
    fetch: typeof globalThis.fetch;
    sleep: (ms: number) => Promise<void>;
    now?: () => number;
}
export declare function requestDeviceCode(environment: Environment, clientId: string, deps: DeviceFlowDeps): Promise<DeviceCodeGrant>;
export declare function pollForToken(environment: Environment, clientId: string, grant: DeviceCodeGrant, deps: DeviceFlowDeps): Promise<StoredCredentials>;
export declare function refreshAccessToken(environment: Environment, clientId: string, refreshToken: string, deps: DeviceFlowDeps): Promise<StoredCredentials>;