import { FC } from 'react';
export declare const TargetSizeInput: FC<TargetSizeInputProps>;
export interface TargetSizeInputProps {
    targetUnitIsPanels: boolean;
    targetNumPanels: number | null;
    setTargetNumPanels: (targetNumPanels: number) => void;
    initialTargetNumPanels: number | null;
    targetSystemSize: number | null;
    setTargetSystemSize: (targetSystemSize: number) => void;
    initialTargetSystemSize: number | null;
    heading: string;
}