import type { MediaAnswer, MediaAnswerRequest, MediaDescribeRequest, MediaDescription, MediaInput, MediaProvider, MediaProviderInfo, MediaReadRequest, MediaText, MediaTask } from './index.js';
/** Options for the mock media provider: what it finds in each medium. */
export interface MockMediaProviderOptions {
    /** Its name. Defaults to `mock-media`. */
    name?: string;
    /** The tasks it performs. Defaults to all three. */
    tasks?: readonly MediaTask[];
    /** Each page's text in a medium. Defaults to one page naming its kind. */
    read?: (media: MediaInput) => readonly string[];
    /** A medium's caption. Defaults to its kind. */
    describe?: (media: MediaInput) => string;
    /** The answer to a question about media. Defaults to the first page of the first medium. */
    answer?: (media: readonly MediaInput[], question: string) => string;
}
/**
 * A deterministic media provider, for tests: it finds in each medium what the options say, so a test
 * can drive reading, describing, answering, and media retrieval without a model. It keeps every
 * request it was given in `calls`.
 */
export declare class MockMediaProvider implements MediaProvider {
    private readonly options;
    /** Its name and capabilities. */
    readonly info: MediaProviderInfo;
    /** Every request, in order, with its task. */
    readonly calls: Array<{
        task: MediaTask;
        media: readonly MediaInput[];
    }>;
    constructor(options?: MockMediaProviderOptions);
    /** The pages the options give the medium. */
    read(request: MediaReadRequest): Promise<MediaText>;
    /** The caption the options give the medium. */
    describe(request: MediaDescribeRequest): Promise<MediaDescription>;
    /** The answer the options give. */
    answer(request: MediaAnswerRequest): Promise<MediaAnswer>;
}