import { TransformerBase } from '../base';
import { Params } from '../base/estimator';
import { FeatureSelectingEstimator } from './common';
export interface SelectFromModelProps {
    estimator: FeatureSelectingEstimator;
    threshold?: number | 'mean' | 'median' | `${number}*mean` | `${number}*median`;
    maxFeatures?: number;
}
export declare class SelectFromModel extends TransformerBase<number[][], number[][]> {
    private estimator;
    private threshold;
    private maxFeatures?;
    private supportIndices;
    private nFeatures;
    private fittedEstimatorState?;
    constructor(props: SelectFromModelProps);
    getParams(): Params;
    fit(X: number[][], y?: number[]): void;
    transform(X: number[][]): number[][];
    getSupport(indices?: boolean): boolean[] | number[];
    get fittedEstimator(): FeatureSelectingEstimator;
}