/** Dependencies */
import { HeadlessBlock, Slots } from "tripetto-runner-foundation";
import { IMailer } from "./interface";
import "./condition";
export declare class Mailer extends HeadlessBlock<IMailer> {
    readonly recipientSlot: import("tripetto-runner-foundation").Value<
        string,
        Slots.String
    >;
    readonly subjectSlot: import("tripetto-runner-foundation").Value<
        string,
        Slots.String
    >;
    readonly messageSlot: import("tripetto-runner-foundation").Value<
        string,
        Slots.String
    >;
    readonly senderSlot:
        | import("tripetto-runner-foundation").Value<string, Slots.String>
        | undefined;
    readonly dataSlot:
        | import("tripetto-runner-foundation").Value<boolean, Slots.Boolean>
        | undefined;
    do(): void;
    validate(): boolean;
}