import type { TokenBatch } from './inference-types.js';
import { type ChatInput, type EmbedOptions, type EmbeddingResult, type EndpointRef, type GenerationResult, type ProviderEndpointOptions, type QueryInput, type QueryOptions } from '../models/types.js';
type ProviderKind = 'openai' | 'anthropic' | 'openai_compatible';
export interface ProviderEndpoint {
    readonly id: string;
    readonly provider: ProviderKind;
    readonly model: string;
    readonly baseUrl: string;
    readonly apiKey?: string;
    readonly keyProvider?: () => string | Promise<string>;
    readonly timeoutMs?: number;
    readonly version?: string;
    readonly authHeaderName?: string;
    readonly authHeaderValue?: string;
    readonly authHeaderValueProvider?: () => string | Promise<string>;
    readonly staticHeaders: readonly {
        readonly name: string;
        readonly value: string;
    }[];
}
/** Registry for browser direct provider endpoints. */
export declare class ProviderEndpointRegistry {
    #private;
    prepare(id: string, options: ProviderEndpointOptions): ProviderEndpoint;
    commit(provider: ProviderEndpoint): EndpointRef;
    remove(id: string): boolean;
    get(endpoint: EndpointRef | undefined): ProviderEndpoint | null;
}
/** Run a browser query request through a direct provider endpoint. */
export declare function runProviderQuery(endpoint: ProviderEndpoint, input: QueryInput, options: QueryOptions, tokenBatchSink: ((batch: TokenBatch) => void) | undefined, signal: AbortSignal): Promise<GenerationResult>;
/** Run a browser chat request through a direct provider endpoint. */
export declare function runProviderChat(endpoint: ProviderEndpoint, input: ChatInput, options: QueryOptions, tokenBatchSink: ((batch: TokenBatch) => void) | undefined, signal: AbortSignal): Promise<GenerationResult>;
/** Run a browser embedding request through a direct provider endpoint. */
export declare function runProviderEmbedding(endpoint: ProviderEndpoint, input: string, options: EmbedOptions, signal: AbortSignal): Promise<EmbeddingResult>;
export {};