/**
 * @license
 * Copyright 2025 Steven Roussey <sroussey@gmail.com>
 * SPDX-License-Identifier: Apache-2.0
 */
import type { AnthropicModelConfig } from "./Anthropic_ModelSchema";
/**
 * Hostnames (or hostname suffixes) accepted for Anthropic `base_url` without
 * the explicit `trustedBaseUrl` opt-out.
 */
export declare const ANTHROPIC_ALLOWED_HOSTS: readonly string[];
type AnthropicSDKModule = typeof import("@anthropic-ai/sdk");
type AnthropicClientClass = AnthropicSDKModule["default"];
export declare function loadAnthropicSDK(): Promise<AnthropicClientClass>;
/**
 * Override the client returned by {@link getClient} so runtime tests can
 * capture the requests the Anthropic run-fns build without a live SDK,
 * API key, or network call. Pass `undefined` to restore normal SDK-backed
 * creation. This lives in the runtime module (not a `vi.mock` of
 * `@anthropic-ai/sdk`) so it works identically whether the provider resolves
 * to `src` or the bundled `dist`, and is immune to duplicate SDK copies
 * across the workspace defeating module-level mocks.
 */
declare function setAnthropicClientForTests(client: unknown): void;
/**
 * @internal Symbols exported only for use by `@workglow/test`. Not part of the
 * stable public API. Surfaced on the `ai-runtime` barrel (via `export *`) and
 * merged into the `/ai` barrel's `_testOnly`.
 */
export declare const _testOnly: {
    readonly setAnthropicClientForTests: typeof setAnthropicClientForTests;
};
export declare function getClient(model: AnthropicModelConfig | undefined): Promise<import("@anthropic-ai/sdk").Anthropic>;
export declare function getModelName(model: AnthropicModelConfig | undefined): string;
/**
 * `input` is widened to `object` so every run-fn can hand its own task input
 * through, including the ones whose schema declares no `maxTokens` port. Those
 * simply fall through to the configured default.
 */
export declare function getMaxTokens(input: object, model: AnthropicModelConfig | undefined): number;
export {};