Couple<String> (Project project, PsiElement psiElement, I18nizeQuickFixModel model) { if (!model.hasValidData()) { return null; } final String key = model.getKey(); final String value = model.getValue(); final Collection<PropertiesFile> selectedPropertiesFiles = model.getAllPropertiesFiles(); createProperty(project, psiElement, selectedPropertiesFiles, key, value); return Couple.of(key, value); }