import { IocContract } from '../Contracts';
/**
 * Manages the import aliases
 */
export declare class ImportAliases {
    private container;
    /**
     * Registered aliases
     */
    list: {
        [alias: string]: string;
    };
    /**
     * In-memory require cache to speed up lookup calls. Yes, "require"
     * is slow. Check "perf/require.js"
     */
    private requireCache;
    constructor(container: IocContract);
    /**
     * Returns the matching alias for the given namespace
     */
    private getPathAlias;
    /**
     * Returns path for a given alias
     */
    private makeAliasPath;
    /**
     * Register an import alias
     */
    register(absolutePath: string, alias: string): this;
    /**
     * Find if a namespace is part of the import aliases
     */
    has(namespace: string): boolean;
    /**
     * Import the namespace from the registered import aliases.
     */
    resolve(namespace: string): any;
    /**
     * Same as [[resolve]] but uses ES modules
     */
    resolveAsync(namespace: string): Promise<any>;
}