import { Loader, Source } from '@graphql-tools/utils';
/**
 * * This loader loads documents and type definitions from a Node module
 *
 * ```js
 * const schema = await loadSchema('module:someModuleName#someNamedExport', {
 *   loaders: [new ModuleLoader()],
 * })
 * ```
 */
export declare class ModuleLoader implements Loader {
    private isExpressionValid;
    canLoad(pointer: string): Promise<boolean>;
    canLoadSync(pointer: string): boolean;
    load(pointer: string): Promise<Source[]>;
    loadSync(pointer: string): Source[];
    private parse;
    private extractFromModule;
    private importModule;
    private importModuleSync;
}