import { SpinnerLike } from "./spinner";
import EmberProject from "./ember-project";
import { ModuleSizes } from "./module";
import { BundleSizes } from "./bundle";
/**
 * Stats data store
 * @beta
 */
declare class Stats {
    /**
     * Name of the CSV file
     */
    private csvFileName;
    /**
     * Name of the dataset
     */
    private dataSetName;
    private bundleRows;
    private moduleRows;
    private isSaved;
    private headers;
    private readonly appendData;
    constructor(
    /**
     * Name of the CSV file
     */
    csvFileName: string, 
    /**
     * Name of the dataset
     */
    dataSetName: string, options?: {
        append?: boolean;
    });
    /**
     * Add a bundle's size information to the data set
     * @param bundleName - name of the bundle
     * @param sizes - bundle asset sizes
     */
    addBundleRow(bundleName: string, sizes: BundleSizes): void;
    /**
     * Add a module's size information to the data set
     * @param bundleName - name of the bundle that this module belongs to
     * @param fileName - name of this module
     * @param sizes - size information for this bundle
     */
    addModuleRow(bundleName: string, fileName: string, sizes: ModuleSizes): void;
    /**
     * Save this data set as a CSV file
     * @param project - ember-cli project
     * @param spinner - optional loading spinner
     */
    save(project: EmberProject, spinner?: SpinnerLike): Promise<void>;
}
export default Stats;