export declare const Surface: {
    readonly MESSAGE: "message";
    readonly MODAL: "modal";
    readonly HOME_TAB: "home-tab";
};
export type SurfaceType = (typeof Surface)[keyof typeof Surface];
export declare const BlockType: {
    readonly ACTIONS: "actions";
    readonly CONTEXT: "context";
    readonly DIVIDER: "divider";
    readonly FILE: "file";
    readonly IMAGE: "image";
    readonly INPUT: "input";
    readonly SECTION: "section";
};
export type BlockTypeValue = (typeof BlockType)[keyof typeof BlockType];
export declare const ElementType: {
    readonly BUTTON: "button";
    readonly CHECKBOX: "checkboxes";
    readonly DATE_PICKER: "datepicker";
    readonly IMAGE: "image";
    readonly MULTI_SELECT: "multi_static_select";
    readonly OVERFLOW: "overflow";
    readonly PLAIN_TEXT_INPUT: "plain_text_input";
    readonly RADIO_BUTTON: "radio_buttons";
    readonly SELECT: "static_select";
    readonly TIME_PICKER: "timepicker";
    readonly URL_INPUT: "url_text_input";
};
export type ElementTypeValue = (typeof ElementType)[keyof typeof ElementType];
export declare const Style: {
    readonly PRIMARY: "primary";
    readonly DANGER: "danger";
};
export type StyleValue = (typeof Style)[keyof typeof Style];
export declare const TextType: {
    readonly PLAIN_TEXT: "plain_text";
    readonly MRKDWN: "mrkdwn";
};
export type TextTypeValue = (typeof TextType)[keyof typeof TextType];
export interface Typeable {
    readonly type: string;
}
export interface Surfaceable {
    getValidSurfaces(): SurfaceType[];
}
export interface BlockInterface extends Typeable, Surfaceable {
    blockId?: string;
    toJSON(): Record<string, unknown>;
}
export interface ElementInterface extends Typeable {
    getValidBlocks(): BlockTypeValue[];
    toJSON(): Record<string, unknown>;
}
export interface MessageInterface {
    readonly maxBlocks: number;
    channel?: string;
    text?: string;
    threadTs?: string;
    addBlock(block: BlockInterface): void;
    getBlocks(): BlockInterface[];
    toJSON(): Record<string, unknown>;
}
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