import ChainedMap from './ChainedMap.js';
export default class Optimization extends ChainedMap {
    minimizers: ChainedMap;
    constructor(parent: any);
    splitChunks(value: false | {
        chunks?: 'all' | 'async' | 'initial';
        minSize?: number;
        minChunks?: number;
        automaticNameDelimiter?: string;
        cacheGroups?: Record<string, any>;
        [key: string]: any;
    }): this;
    concatenateModules(value: boolean): this;
    flagIncludedChunks(value: boolean): this;
    mergeDuplicateChunks(value: boolean): this;
    minimize(value: boolean): this;
    namedChunks(value: boolean | string): this;
    namedModules(value: boolean | string): this;
    nodeEnv(value: string | boolean): this;
    noEmitOnErrors(value: boolean): this;
    occurrenceOrder(value: boolean): this;
    portableRecords(value: boolean): this;
    providedExports(value: boolean): this;
    removeAvailableModules(value: boolean): this;
    removeEmptyChunks(value: boolean): this;
    runtimeChunk(value: boolean | 'single' | 'multiple' | {
        name?: string | ((entryPoint: any) => string);
    }): this;
    sideEffects(value: boolean): this;
    usedExports(value: boolean | 'global'): this;
    minimizer(name: string | any[]): any;
    toConfig(): any;
    merge(obj: any, omit?: string[]): this;
}