import { Context } from "koa";
import { FormControlContext } from "../controls/form-control.js";
import { Textarea } from "../controls/textarea.js";
import { FormDataValue } from "../form-types.js";
import { FieldParseResult } from "./field.js";
import { SimpleFormField } from "./simple-form-field.js";
export declare class JSONField<Required extends boolean> extends SimpleFormField<Required, Textarea, Record<string, unknown>> {
    constructor(required: Required);
    getControl(): Textarea;
    getEmptyValue(): Record<string, unknown>;
    parse(ctx: Context, raw_value: FormDataValue): Promise<FieldParseResult<Record<string, unknown>>>;
    getSealiousCreateValue(fctx: FormControlContext): Promise<Record<string, unknown> | null>;
}