import type { TokenBatch } from './inference-types.js';
import { type ChatInput, type EmbedOptions, type EmbeddingResult, type EndpointRef, type GenerationResult, type QueryInput, type QueryOptions, type GatewayEndpointOptions } from '../models/types.js';
/** Normalized gateway endpoint stored by the browser client. */
export interface GatewayEndpoint {
    readonly id: string;
    readonly target: string;
    readonly baseUrl: string;
    readonly routes: {
        readonly query: string;
        readonly chat: string;
        readonly embed: string;
    };
    readonly authentication: {
        readonly kind: 'none' | 'bearer' | 'header';
        readonly headerName?: string;
        readonly value?: string;
        readonly valueProvider?: () => string | Promise<string>;
    };
    readonly staticHeaders: Readonly<Record<string, string>>;
    readonly timeoutMs?: number;
    readonly protocolOptions: Readonly<Record<string, unknown>>;
}
/** Registry for browser gateway endpoints. */
export declare class GatewayEndpointRegistry {
    #private;
    prepare(id: string, options: GatewayEndpointOptions): GatewayEndpoint;
    commit(endpoint: GatewayEndpoint): EndpointRef;
    remove(id: string): boolean;
    get(endpoint: EndpointRef | undefined): GatewayEndpoint | null;
}
/** Run a browser query through a gateway endpoint. */
export declare function runGatewayQuery(endpoint: GatewayEndpoint, input: QueryInput, options: QueryOptions, tokenBatchSink: ((batch: TokenBatch) => void) | undefined, signal: AbortSignal): Promise<GenerationResult>;
/** Run a browser chat request through a gateway endpoint. */
export declare function runGatewayChat(endpoint: GatewayEndpoint, input: ChatInput, options: QueryOptions, tokenBatchSink: ((batch: TokenBatch) => void) | undefined, signal: AbortSignal): Promise<GenerationResult>;
/** Run a browser embedding request through a gateway endpoint. */
export declare function runGatewayEmbedding(endpoint: GatewayEndpoint, input: string, options: EmbedOptions, signal: AbortSignal): Promise<EmbeddingResult>;