import type { EmbeddingProviderCallContext, EmbeddingProviderCapabilities, EmbeddingProviderInfo, EmbeddingProviderRequest, EmbeddingProviderResult, EmbeddingsProvider } from '../types/embeddings.js';
/**
 * Hosted embedding adapters.
 *
 * They share one file because each is a single request/response mapping over `fetch` with no SDK
 * and no shared state; splitting them would repeat the HTTP and decoding helpers five times.
 */
export interface EmbeddingAdapterOptions {
    /** API key. */
    apiKey?: string;
    /** API base URL. Each adapter has its own default. */
    baseUrl?: string;
    /** Model used when a request names none. */
    model?: string;
    /** Headers added to every request. */
    headers?: Record<string, string>;
    /** Replaces the global `fetch`, for proxying or tests. */
    fetch?: typeof fetch;
}
/** Options for any server that speaks the OpenAI `/embeddings` protocol. */
export interface OpenAICompatibleEmbeddingOptions extends EmbeddingAdapterOptions {
    /** Name this adapter reports and registers under. */
    providerName?: string;
    /** Replaces the declared capabilities, for a compatible server with different limits. */
    capabilities?: Partial<EmbeddingProviderCapabilities>;
}
declare abstract class HttpEmbeddingProvider implements EmbeddingsProvider {
    protected readonly options: EmbeddingAdapterOptions;
    abstract readonly info: EmbeddingProviderInfo;
    constructor(options?: EmbeddingAdapterOptions);
    abstract embed(request: EmbeddingProviderRequest, context: EmbeddingProviderCallContext): Promise<EmbeddingProviderResult>;
    protected post(url: string, body: unknown, model: string, signal: AbortSignal): Promise<unknown>;
    protected authHeaders(): Record<string, string>;
    protected baseUrl(fallback: string): string;
}
/**
 * OpenAI and any OpenAI-compatible `/embeddings` endpoint.
 *
 * `baseUrl` points it at Azure OpenAI, a gateway, or a self-hosted server; `model` sets the default
 * when the request names none.
 */
export declare class OpenAIEmbeddingProvider extends HttpEmbeddingProvider {
    /** Provider name, capabilities, and models. */
    readonly info: EmbeddingProviderInfo;
    constructor(options?: OpenAICompatibleEmbeddingOptions);
    /** Embeds a batch of texts. */
    embed(request: EmbeddingProviderRequest, context: EmbeddingProviderCallContext): Promise<EmbeddingProviderResult>;
}
/** Google Generative Language `batchEmbedContents`. */
export declare class GoogleEmbeddingProvider extends HttpEmbeddingProvider {
    /** Provider name, capabilities, and models. */
    readonly info: EmbeddingProviderInfo;
    constructor(options?: EmbeddingAdapterOptions);
    protected authHeaders(): Record<string, string>;
    /** Embeds a batch of texts. */
    embed(request: EmbeddingProviderRequest, context: EmbeddingProviderCallContext): Promise<EmbeddingProviderResult>;
}
/** Cohere v2 `/embed`. */
export declare class CohereEmbeddingProvider extends HttpEmbeddingProvider {
    /** Provider name, capabilities, and models. */
    readonly info: EmbeddingProviderInfo;
    constructor(options?: EmbeddingAdapterOptions);
    /** Embeds a batch of texts. */
    embed(request: EmbeddingProviderRequest, context: EmbeddingProviderCallContext): Promise<EmbeddingProviderResult>;
}
/** Mistral `/v1/embeddings`, which follows the OpenAI request and response shape. */
export declare class MistralEmbeddingProvider extends OpenAIEmbeddingProvider {
    constructor(options?: EmbeddingAdapterOptions);
}
/** Local Ollama `/api/embed`. */
export declare class OllamaEmbeddingProvider extends HttpEmbeddingProvider {
    /** Provider name, capabilities, and models. */
    readonly info: EmbeddingProviderInfo;
    constructor(options?: EmbeddingAdapterOptions);
    /** Embeds a batch of texts. */
    embed(request: EmbeddingProviderRequest, context: EmbeddingProviderCallContext): Promise<EmbeddingProviderResult>;
}
export {};