/** Dependencies */
import { NodeBlock, Slots } from "@tripetto/runner";
import "./condition";
export declare abstract class Textarea extends NodeBlock<{
    readonly prefill?: string;
    readonly minLength?: number;
}> {
    /** Contains the textarea slot with the value. */
    readonly textareaSlot: import("@tripetto/runner").Value<string, Slots.Text>;
    /** Contains if the block is required. */
    readonly required: boolean;
    /** Contains the maximum text length. */
    readonly maxLength: number | undefined;
    validate(): boolean;
}