import { Unit } from '../../../../Class/Unit';
import { Primitive } from '../../../../Primitive';
import { System } from '../../../../system';
export interface I<T> {
    unit: string;
}
export interface O<T> {
    err: string;
}
export default class Catch<T> extends Primitive<I<T>, O<T>> {
    private _unlisten;
    private _done;
    constructor(system: System);
    onRefInputData(name: string, unit: Unit): void;
    onRefInputDrop(name: string): void;
    onDataOutputDrop(name: string): void;
}
