Agora RTC Objective-C API Reference Refactor

<AgoraMediaFilterEventDelegate> Protocol Reference

Inherits <NSObject>.

## Method Documentation

## ◆ onEvent:extension:key:value:

- (void) onEvent: |  | (NSString *__nullable) | provider
extension: |  | (NSString *__nullable) | extension
key: |  | (NSString *__nullable) | key
value: |  | (NSString *__nullable) | value
| optional

## ◆ onExtensionStopped:extension:

- (void) onExtensionStopped: |  | (NSString *__nullable) | provider
extension: |  | (NSString *__nullable) | extension
| optional

## ◆ onExtensionStarted:extension:

- (void) onExtensionStarted: |  | (NSString *__nullable) | provider
extension: |  | (NSString *__nullable) | extension
| optional

## ◆ onExtensionError:extension:error:message:

- (void) onExtensionError: |  | (NSString *__nullable) | provider
extension: |  | (NSString *__nullable) | extension
error: |  | (int) | error
message: |  | (NSString *__nullable) | message
| optional