@expo/metro-config/build/babel-transformer.d.ts

A Metro config for running React Native projects with the Metro bundler

import type { TransformOptions } from './babel-core';
export type ExpoBabelCaller = TransformOptions['caller'] & {
    babelRuntimeVersion?: string;
    metroSourceType?: 'script' | 'module' | 'asset';
    supportsReactCompiler?: boolean;
    isReactServer?: boolean;
    isHMREnabled?: boolean;
    isServer?: boolean;
    isNodeModule?: boolean;
    preserveEnvVars?: boolean;
    isDev?: boolean;
    asyncRoutes?: boolean;
    baseUrl?: string;
    engine?: string;
    bundler?: 'metro' | (string & object);
    platform?: string | null;
    routerRoot?: string;
    projectRoot: string;
    /** When true, indicates this bundle should contain only the loader export */
    isLoaderBundle?: boolean;
    /** When true, indicates this file is part of a DOM component bundle */
    isDomComponent?: boolean;
};