import { TokenManager as OAuthTokenManager } from '../api/oauth.ts';
import { type ByteWindow } from '../../utils/ranges.ts';
export interface DropboxConfig {
    clientId: string;
    clientSecret?: string;
    refreshToken: string;
    /**
     * Base URL overriding the real Dropbox hosts (integ fakes): one origin
     * serving `/oauth2/token`, the RPC API under `/2`, and content downloads
     * under `/2`. Unset means the production oauth/api/content hosts.
     */
    endpoint?: string;
    refreshFn?: (refreshToken: string) => Promise<{
        accessToken: string;
        expiresIn: number;
    }>;
}
export declare class DropboxApiError extends Error {
    readonly status: number;
    /** Dropbox `error_summary` (e.g. "path/not_found/..", "path/conflict/folder/.."). */
    readonly summary: string;
    constructor(message: string, status: number, summary?: string);
}
export declare class DropboxTokenManager extends OAuthTokenManager {
    readonly apiBase: string;
    readonly contentBase: string;
    private readonly config;
    constructor(config: DropboxConfig);
    protected refreshPair(): Promise<[string, number]>;
}
export declare function dropboxRpc(tm: DropboxTokenManager, endpoint: string, body: unknown): Promise<unknown>;
export declare function dropboxUpload(tm: DropboxTokenManager, path: string, data: Uint8Array): Promise<void>;
export declare function dropboxDownload(tm: DropboxTokenManager, path: string, window?: ByteWindow): Promise<Uint8Array>;
export declare function dropboxDownloadStream(tm: DropboxTokenManager, path: string): AsyncIterable<Uint8Array>;
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