export interface DeepSeekHttpAuth {
    apiKey: string;
    /** Override base (defaults per call type). */
    baseUrl?: string;
    extraHeaders?: Record<string, string>;
    signal?: AbortSignal;
    timeoutMs?: number;
}
export interface DeepSeekFimRequest {
    model: string;
    prompt: string;
    suffix?: string;
    maxTokens?: number;
    temperature?: number;
    stop?: string | string[];
    userId?: string;
}
export interface DeepSeekFimResult {
    text: string;
    modelUsed: string;
    finishReason?: string;
    usage?: {
        promptTokens?: number;
        completionTokens?: number;
        totalTokens?: number;
    };
}
export interface DeepSeekResponsesRequest {
    model: string;
    input?: string | unknown[];
    instructions?: string;
    maxOutputTokens?: number;
    temperature?: number;
    stream?: boolean;
    /** OpenAI Responses `reasoning.effort` (DeepSeek supports effort). */
    reasoningEffort?: 'low' | 'high' | 'max' | 'none';
    tools?: unknown[];
    toolChoice?: unknown;
    userId?: string;
    /** Extra body fields (passthrough). */
    extra?: Record<string, unknown>;
}
export interface DeepSeekResponsesResult {
    id?: string;
    outputText: string;
    status?: string;
    modelUsed: string;
    usage?: {
        inputTokens?: number;
        outputTokens?: number;
        cachedTokens?: number;
        reasoningTokens?: number;
    };
    raw: unknown;
}
/** FIM completion (beta). Max output 4K per DeepSeek docs. */
export declare function completeDeepSeekFim(auth: DeepSeekHttpAuth, req: DeepSeekFimRequest): Promise<DeepSeekFimResult>;
/**
 * Build a Chat Completions messages list for prefix completion: last
 * assistant message must include `prefix: true` and the request must hit
 * the beta base URL.
 */
export declare function withChatPrefixAssistant(messages: Array<Record<string, unknown>>, prefixContent: string): Array<Record<string, unknown>>;
/** Non-streaming Responses API call (flash today; Pro when DeepSeek enables it). */
export declare function createDeepSeekResponse(auth: DeepSeekHttpAuth, req: DeepSeekResponsesRequest): Promise<DeepSeekResponsesResult>;
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