import { DType, PadMode, Tensor } from '../../../library';
import { BackwardOp, VariableI } from '../../types';
export declare class PadBack<DTpe extends DType> implements BackwardOp<DTpe> {
    x: VariableI<DTpe>;
    pads: number[];
    mode: PadMode;
    value: number;
    constructor(x: VariableI<DTpe>, pads: number[], mode: PadMode, value: number);
    backward(grad: Tensor<DTpe>): void;
    delete(): void;
}