import type { ChatMessage, ProviderId, ReasoningArtifactReplayObserver, ReasoningArtifactReplayTarget, ReasoningPreference, ToolChoice, ToolDefinition } from "../../types.js";
import type { RequestPlanV1 } from "../request-plan.js";
import { ReasoningControlContext, ReasoningStyle } from "./reasoning-payload.js";
export declare function toOpenAiMessages(messages: ChatMessage[], supportsVision?: boolean, replay?: {
    target: ReasoningArtifactReplayTarget;
    observe?: ReasoningArtifactReplayObserver | undefined;
    forceScope?: boolean | undefined;
    portableToolHistory?: ReadonlySet<ChatMessage> | undefined;
}): Array<Record<string, unknown>>;
export declare function isOpenAiReasoningModel(model: string): boolean;
export interface ChatCompletionsBodyOptions {
    model: string;
    providerId?: ProviderId | undefined;
    messages: ChatMessage[];
    maxTokens?: number | undefined;
    temperature?: number | undefined;
    stream: boolean;
    includeStreamUsage?: boolean | undefined;
    reasoning?: ReasoningPreference | undefined;
    reasoningStyle?: ReasoningStyle | undefined;
    supportsVision?: boolean | undefined;
    tools?: ToolDefinition[] | undefined;
    toolChoice?: ToolChoice | undefined;
    parallelToolCalls?: boolean | undefined;
    replayTarget?: ReasoningArtifactReplayTarget | undefined;
    reasoningArtifactReplayObserver?: ReasoningArtifactReplayObserver | undefined;
    forceReasoningReplay?: boolean | undefined;
    portableToolHistory?: ReadonlySet<ChatMessage> | undefined;
    control?: ReasoningControlContext | undefined;
    outputTokenLimit?: number | undefined;
    cacheFields?: Record<string, string> | undefined;
    resolvedSampling?: {
        readonly temperature?: number | undefined;
        readonly topP?: number | undefined;
    } | undefined;
}
export declare function buildChatBody(options: ChatCompletionsBodyOptions): string;
export declare function chatCompletionsBodyFromPlan(plan: RequestPlanV1, extras?: {
    reasoningStyle?: ReasoningStyle | undefined;
    includeStreamUsage?: boolean | undefined;
    reasoningArtifactReplayObserver?: ReasoningArtifactReplayObserver | undefined;
    forceReasoningReplay?: boolean | undefined;
}): string;