String (PsiVariable variable, PsiExpression expression, PsiType expressionType) { String shortcutMappingMethod = StreamRefactoringUtil.getShortcutMappingMethod(variable, expressionType, expression); if(shortcutMappingMethod != null) return shortcutMappingMethod; return StreamRefactoringUtil.getMapOperationName(variable.getType(), expressionType); }