import type { KreuzbergExtractor } from "../../extensions/compat/native-services.js";
type OpaqueModule = any;
/** Lazily import `@huggingface/transformers` (+ onnxruntime, ~500MB). */
export declare function importTransformers(): Promise<OpaqueModule>;
/**
 * Return `value` when it is an injected Claude Agent SDK mock (an object exposing
 * `query`), otherwise `undefined` so the real package is imported.
 */
export declare function injectedClaudeAgentSdkMock(value: unknown): unknown | undefined;
/** Lazily import `@anthropic-ai/claude-agent-sdk` (~69MB). */
export declare function importClaudeAgentSDK(): Promise<OpaqueModule>;
/**
 * Lazily import kreuzberg document extraction.
 *
 * Delegates to the `DocumentExtractor` extension contract
 * (`@veryfront/ext-document-kreuzberg`)
 * when available. Without the extension, throws an actionable error instructing
 * the user to install `ext-document-kreuzberg`.
 *
 * Node/Bun path: `@kreuzberg/node` resolved from the project's node_modules at
 * runtime. The extension handles that dynamic import internally.
 */
export declare function importKreuzberg(): Promise<KreuzbergExtractor>;
export {};
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