import { Context } from "koa";
import { SimpleInput } from "../controls/controls.js";
import { FormControlContext } from "../controls/form-control.js";
import { FormDataValue } from "../form-types.js";
import { FieldParseResult } from "./field.js";
import { SimpleFormField } from "./simple-form-field.js";
export declare class DateTime<Required extends boolean> extends SimpleFormField<Required, SimpleInput, Date | null> {
    constructor(required: Required);
    getEmptyValue(): Date | null;
    parse(ctx: Context, raw_value: FormDataValue): Promise<FieldParseResult<Date | null>>;
    getSealiousCreateValue(fctx: FormControlContext): Promise<number | null>;
    getControl(): SimpleInput;
    sealiousValueToForm(ctx: Context, value: number | null): Promise<FormDataValue>;
}