/**
 * openai provider — OpenAI Chat Completions. Reads API key from the
 * env var named in `provider.apiKeyEnv` (default `OPENAI_API_KEY`).
 * Per A4 prohibition, NO SDK; we use fetch directly.
 */
import type { ProviderCallInput, ProviderCallResult } from './ollama.js';
export declare function callOpenAI(input: ProviderCallInput): Promise<ProviderCallResult>;