import type { VideoCallContext, VideoContent, VideoJobRef, VideoJobState, VideoModelCapabilities, VideoProvider, VideoProviderInfo, VideoProviderRequest } from './index.js';
/** Options for the Runway video provider. */
export interface RunwayVideoProviderConfig {
    /** The API secret, sent as a bearer token. */
    apiKey: string;
    /** API base URL. Defaults to `https://api.dev.runwayml.com`. */
    baseUrl?: string;
    /** The `X-Runway-Version` header. Defaults to `2024-11-06`. */
    version?: string;
    /** The model a request naming none uses. Defaults to `gen4.5`. */
    defaultModel?: string;
    /** The models served. Defaults to every text-to-video model Runway names. */
    models?: readonly string[];
    /** Where a model differs from what the adapter knows of it. */
    byModel?: Record<string, Partial<VideoModelCapabilities>>;
    /** Headers added to every API request, not to a download. */
    defaultHeaders?: Record<string, string>;
    /** Replaces the global `fetch`. */
    fetch?: typeof globalThis.fetch;
}
/**
 * Runway behind the video contract. A job is a task: its id is the ref, any worker polls it, and each
 * video is read from the signed URL the finished task lists, which takes no credentials. A request's
 * shape and size become Runway's `ratio`, such as `1280:720`; a ratio of Runway's own passes through
 * as `aspectRatio`. Fields a model takes that the contract does not, such as Seedance's, go in
 * `providerOptions`.
 */
export declare class RunwayVideoProvider implements VideoProvider {
    private readonly config;
    /** Provider name, capabilities, and models. */
    readonly info: VideoProviderInfo;
    private readonly baseUrl;
    private readonly fetchImplementation;
    constructor(config: RunwayVideoProviderConfig);
    /**
     * Starts a text-to-video task, an image-to-video one when the request has a first frame, or a
     * video-to-video one when it has a video to extend or edit.
     */
    submit(request: VideoProviderRequest, context: VideoCallContext): Promise<VideoJobRef>;
    /** A video-to-video task: the video given, or the one a task of this account made, changed or continued. */
    private fromVideo;
    /** A video as Runway takes it: by URL, inline up to 5 MB, or the signed URL of a task's own video. */
    private videoUri;
    /** A request's reference images and reference videos, as the model names them. */
    private references;
    /** Reads the task. */
    poll(ref: VideoJobRef, context: VideoCallContext): Promise<VideoJobState>;
    /** Streams one video from the signed URL the finished task lists. */
    download(ref: VideoJobRef, index: number, context: VideoCallContext): Promise<VideoContent>;
    /** Cancels a running task. */
    cancel(ref: VideoJobRef, context: VideoCallContext): Promise<void>;
    /** Deletes a finished task and its videos. */
    remove(ref: VideoJobRef, context: VideoCallContext): Promise<void>;
    private task;
    private call;
}