import { Context } from "koa";
import { FormDataValue } from "../form-types.js";
import { Tickable, TickableOptions } from "./tickable.js";
import { FormField } from "../fields/field.js";
export declare class Checkbox extends Tickable<boolean> {
    field: FormField<boolean, boolean>;
    type: "checkbox";
    constructor(field: FormField<boolean, boolean>, options?: Partial<TickableOptions<boolean>>);
    isChecked(_ctx: Context, _data: Record<string, FormDataValue>, value: boolean): boolean;
    getValueAttribute(): string;
}
export declare class CheckboxWithValue extends Checkbox {
    field: FormField<boolean, boolean>;
    value: string;
    constructor(field: FormField<boolean, boolean>, options: TickableOptions<boolean>, value: string);
    getValueAttribute(): string;
}