/// <reference types="react" />
import { ExpressionValue } from "../ExpressionValue";
import { RegistrationData } from "./RegisterExpression";
export declare const AddExpressionButton: (props: {
    registration: RegistrationData;
    expression: ExpressionValue;
    onClick: (registration: RegistrationData) => void;
    hideLabel: boolean;
}) => JSX.Element;
