import type { BaseChatModel, BaseChatModelParams } from '@langchain/core/language_models/chat_models';
import type { ChatOllamaInput } from '@langchain/ollama';
/**
 * GS2-59 — build a native `ChatOllama` client (`@langchain/ollama`, talking to Ollama's
 * `/api/chat`). This replaces the previous `ChatOpenAI`→`/v1` client, which had two fatal
 * properties for local thinking models: it DROPPED the model's separate reasoning field (the
 * completions converter discards it — `__includeRawResponse` is openrouter-only), and it IGNORED
 * `num_ctx` so a large agentic prompt starved the answer to empty content. `ChatOllama` fixes both:
 * it honors `numCtx`, and it surfaces the model's thinking in `additional_kwargs.reasoning_content`
 * — the exact field the reasoning pipeline (`pickReasoningDelta`) already reads — so the `/reasoning`
 * panel populates with no downstream change.
 *
 * Ollama is a local, unauthenticated daemon, so the old OpenAI-client knobs are gone (2.0 migration
 * note): point elsewhere with `OLLAMA_HOST`; the previous `configuration.baseURL` / placeholder
 * `apiKey` fields no longer apply. If a reverse proxy in front of Ollama needs auth, set `headers`
 * in the config (passed straight through to `ChatOllama`).
 */
export declare function processJsonConfig(llmConfig: ChatOllamaInput & BaseChatModelParams): Promise<BaseChatModel>;
export declare function init(configFileName: string, force?: boolean, model?: string): void;