import type { ChatMessage, CompletionRequest, ProviderId, ReasoningArtifactReplayObserver, ReasoningPreference, ToolChoice, ToolDefinition } from "../../types.js";
import type { OpenAiCompatibleResult } from "./reasoning-artifacts.js";
import type { ProviderStreamEventSink } from "../stream-events.js";
import type { ReasoningStyle } from "./reasoning-payload.js";
export declare function responsesFirstCandidate(providerId: ProviderId): boolean;
export interface ResponsesFirstOptions {
    provider: string;
    providerId: ProviderId;
    baseUrl: string;
    apiKey: string;
    model: string;
    messages: ChatMessage[];
    maxTokens?: number | undefined;
    temperature?: number | undefined;
    headers?: Record<string, string> | undefined;
    signal?: AbortSignal | undefined;
    reasoning?: ReasoningPreference | undefined;
    reasoningStyle?: ReasoningStyle | undefined;
    includeStreamUsage?: boolean | undefined;
    tools?: ToolDefinition[] | undefined;
    toolChoice?: ToolChoice | undefined;
    parallelToolCalls?: boolean | undefined;
    reasoningArtifactReplayObserver?: ReasoningArtifactReplayObserver | undefined;
}
interface StreamBridgeOptions {
    onToken: (token: string) => void;
    onToolCallDelta?: CompletionRequest["onToolCallDelta"];
    onStreamEvent?: ProviderStreamEventSink;
}
type ChatProbe = (options: ResponsesFirstOptions) => Promise<OpenAiCompatibleResult>;
export declare function openAiCompatibleCompleteViaResponses(options: ResponsesFirstOptions, probeChat: ChatProbe): Promise<OpenAiCompatibleResult | undefined>;
export declare function openAiCompatibleStreamViaResponses(options: ResponsesFirstOptions, stream: StreamBridgeOptions, probeChat: ChatProbe): Promise<OpenAiCompatibleResult | undefined>;
export declare function resetResponsesWireStatesForTesting(): void;
export {};