import type { InstalledPluginRecord } from './types.js';
export interface InstallPluginOptions {
    source?: 'auto' | 'npm' | 'local';
    link?: boolean;
}
export interface InstallPluginResult {
    record: InstalledPluginRecord;
    runtimeDir: string;
}
export declare function installLocalPlugin(spec: string, opts?: InstallPluginOptions): InstallPluginResult;
export declare function installNpmPlugin(spec: string): InstallPluginResult;
export declare function installPlugin(spec: string, opts?: InstallPluginOptions): InstallPluginResult;
export declare function installedPluginRuntimeDir(pluginId: string): string;
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