Interface ComposeEditorHandle

interface ComposeEditorHandle {
    focus: () => void;
    has_meaningful_content: () => boolean;
    insert_image_blob: (blob: Blob) => Promise<void>;
    insert_url_preview: (url: string) => void;
    insert_youtube_url: (url: string) => void;
    set_content: (html: string) => void;
}