import { ClassifierBase } from '../base';
import { Params } from '../base/estimator';
import type { ExtraTreeProps } from '../tree/extraTreeClassifier';
export interface ExtraTreesClassifierProps extends ExtraTreeProps {
    nEstimators?: number;
    bootstrap?: boolean;
    randomState?: number;
}
export declare class ExtraTreesClassifier extends ClassifierBase {
    private nEstimators;
    private bootstrap;
    private maxFeatures;
    private randomState?;
    private treeProps;
    private estimators;
    private classesState;
    constructor(props?: ExtraTreesClassifierProps);
    getParams(): Params;
    fit(X: number[][], y: number[]): void;
    predict(X: number[][]): number[];
    predictProba(X: number[][]): number[][];
    get classes(): number[];
    get featureImportances(): number[];
}