import type { PerseusExpressionUserInput } from "@khanacademy/perseus-core";
export type ExpressionPromptJSON = {
    type: "expression";
    label?: string;
    userInput: {
        value: string;
    };
};
export declare const getPromptJSON: (label: string | undefined, userInput: PerseusExpressionUserInput) => ExpressionPromptJSON;