import type { ImageUploadOptions } from '../types/options';
/**
 * Image upload, resize handle, and edit modal.
 */
export declare class ImageFeature {
    private editorArea;
    private imageUploadUrl;
    private maxImageSize;
    constructor(editorArea: HTMLElement, opts: ImageUploadOptions);
    triggerUpload(): void;
    private handleUpload;
    private insertUploadPlaceholder;
    private replacePlaceholderWithImage;
    private showUploadError;
    makeImageResizable(img: HTMLImageElement): {
        wrapper: HTMLElement;
    };
    private openImageEditor;
    destroy(): void;
    private showError;
    private escapeHtml;
}
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