/**
 * LangChain JS wrapper for Keel governance.
 *
 * Targets @langchain/core 1.1.40 (verified on 2026-04-17).
 * @langchain/core is an OPTIONAL peer dependency — it is NOT listed in
 * package.json `dependencies`. Install it separately:
 *   npm install @langchain/core@1.1.40
 *
 * Usage:
 *   import { ChatAnthropic } from "@langchain/anthropic";
 *   import { KeelChatModel } from "keel-sdk/integrations/langchain";
 *
 *   const inner = new ChatAnthropic({ model: "claude-3-5-sonnet-latest" });
 *   const model = new KeelChatModel({
 *     inner,
 *     keelApiKey: process.env.KEEL_API_KEY!,
 *     keelProjectId: "prj_...",
 *   });
 *   const response = await model.invoke("Hello");
 *
 * Parent permit chaining (agent loops):
 *   Pass keelParentPermitId explicitly, OR nest calls inside an active
 *   KeelChatModel._generate() — the AsyncLocalStorage propagates automatically.
 *   getCurrentKeelPermitId() returns the active permit ID from within a
 *   tool execute() callback so you can thread it into the next LLM call.
 *
 * Detection note: this module uses dynamic import() (not synchronous require())
 * so that test harnesses can intercept it via vi.mock() for the "not installed"
 * scenario. The class that extends BaseChatModel is created lazily inside the
 * async detection function after BaseChatModel is available.
 */
export { getCurrentKeelPermitId } from "./_context";
export interface KeelChatModelOptions {
    /** The underlying LangChain chat model to delegate to. */
    inner: any;
    /** Keel API key. Falls back to KEEL_API_KEY env var. */
    keelApiKey?: string;
    /** Keel project ID. Falls back to KEEL_PROJECT_ID env var. */
    keelProjectId?: string;
    /** Keel API base URL. Falls back to KEEL_BASE_URL env var. */
    keelBaseUrl?: string;
    /** Explicit parent permit ID. Overrides AsyncLocalStorage value. */
    keelParentPermitId?: string;
    /** Keel session ID to group permits. */
    keelSessionId?: string;
    /** Subject for permit requests. Defaults to { type: "api_key", id: "default" }. */
    keelSubject?: {
        type: string;
        id: string;
    };
    /** Per-call timeout in milliseconds. */
    timeout?: number;
    /** Maximum retries on transient Keel API errors. */
    maxRetries?: number;
}
/**
 * Awaits the async @langchain/core detection. Call this in beforeAll/beforeEach
 * in test suites to ensure detection has completed before constructing instances.
 */
export declare function waitForLangchainDetection(): Promise<void>;
export interface KeelChatModel {
    inner: any;
    invoke(input: any, options?: any): Promise<any>;
    stream(input: any, options?: any): AsyncGenerator<any, void>;
    bindTools(tools: any[], kwargs?: any): any;
    _generate(messages: any[], options: any, runManager?: any): Promise<any>;
    _llmType(): string;
}
export declare class KeelChatModel {
    constructor(options: KeelChatModelOptions);
}