import * as Blockly from "blockly";
import { FieldCustom } from "./field_utils";
/**
 * An image field on the block that does not have a text label.
 * These do not produce text for display strings, but may have a visual element (like an expand button).
 */
export declare class FieldImageNoText extends Blockly.FieldImage implements FieldCustom {
    isFieldCustom_: boolean;
    constructor(src: string | typeof Blockly.Field.SKIP_SETUP, width: string | number, height: string | number, alt?: string, onClick?: (p1: Blockly.FieldImage) => void, flipRtl?: boolean, config?: Blockly.FieldImageConfig);
    getFieldDescription(): string;
    protected showEditor_(): void;
}