import * as _babel_types from '@babel/types';
import { PluginObj } from '@babel/core';

interface PluginOptions {
    /** Base URL prefix (e.g., "https://cdn.example.com/assets") */
    baseUri?: string;
    /** Directory to copy assets to (enables file copying when set) */
    outputDir?: string;
    /** File extensions to transform (default: ['.gif', '.jpeg', '.jpg', '.png', '.svg']) */
    extensions?: string[];
    /** Content hash length in filename (default: 8, set 0 to disable) */
    hashLength?: number;
    /** Path base to strip when preserving paths (flattens if not set) */
    preservePaths?: string;
}

interface PluginState {
    opts: PluginOptions;
    filename: string;
    cwd: string;
}
declare function plugin({ types: t, }: {
    types: typeof _babel_types;
}): PluginObj<PluginState>;
declare function resetBuildCache(): void;

export { type PluginOptions, plugin as default, resetBuildCache };