text: import Plugin from '@ckeditor/ckeditor5-core/src/plugin';
  import strikethroughIcon from '@ckeditor/ckeditor5-basic-styles/theme/icons/strikethrough.svg';
  
  import { createVariableToolbarButton } from '../utils';
  
  export default class VariableSignatureUI extends Plugin {
  	init() {
  		const editor = this.editor;
  		createVariableToolbarButton(editor, this, {
  			commandName: 'addVarSignature',
  			buttonName: 'addVarSignature',
  			buttonLabel: 'Add Variable Signature',
  			icon: strikethroughIcon
  		});
  	}
  }
  