Agora RTC Objective-C API Reference Refactor

Properties
AgoraRtmErrorInfo Class Reference

Inherits NSError.

## Properties
NSString * | operation
NSString * | reason

## Property Documentation

## ◆ errorCode

- (AgoraRtmErrorCode) errorCode
| read write nonatomic assign

## ◆ operation

- (NSString*) operation
| read write nonatomic copy

Which api user called.

## ◆ reason

- (NSString*) reason
| read write nonatomic copy

brief description of login error.