/**
 * Local embedding runtime support guard.
 *
 * The bundled local embedding stack (`@huggingface/transformers` →
 * `onnxruntime-node`) only ships native ONNX Runtime bindings for a subset of
 * platform/arch pairs. On macOS Intel (`darwin`/`x64`), `onnxruntime-node`
 * ships no `bin/napi-v6/darwin/x64/onnxruntime_binding.node`, so *importing*
 * transformers.js throws a raw `Cannot find module ...onnxruntime_binding.node`
 * before any device/backend selection can run (#1515). `ONNX_WEB_BACKEND=wasm`
 * cannot rescue this — the failure is at native-module import time, not backend
 * selection (#1516).
 *
 * This module is intentionally free of any native or transformers.js import (at
 * module scope or inside its functions) so it can be consulted *before* the
 * dynamic import that would crash. HTTP embedding mode never touches the native
 * runtime, so callers in HTTP mode must skip this guard.
 */
export interface LocalEmbeddingRuntimeOptions {
    platform?: NodeJS.Platform;
    arch?: NodeJS.Architecture;
}
/**
 * Return a human-readable explanation when the *local* embedding runtime cannot
 * load on this platform, or `null` when local embeddings are expected to work.
 *
 * Only `darwin`/`x64` is blocked today: it is the one platform/arch pair where
 * the bundled `onnxruntime-node` ships no native binding (#1515). Every other
 * platform returns `null` and follows the normal device-probe path, so genuine
 * ONNX failures on supported platforms are never masked by this message.
 *
 * Accepts an explicit `{ platform, arch }` for testing; defaults to the current
 * process values.
 */
export declare const getLocalEmbeddingRuntimeBlocker: (options?: LocalEmbeddingRuntimeOptions) => string | null;
/**
 * True when `message` is the macOS-Intel local-embedding blocker produced by
 * {@link getLocalEmbeddingRuntimeBlocker}. Lets the CLI surface a clean,
 * actionable message instead of a raw stack trace, without coupling to the
 * full wording.
 */
export declare const isLocalEmbeddingRuntimeBlockerMessage: (message: string) => boolean;