fix(message): type checking

Author: zapcannon87

AVOS/Sources/Realtime/IM/Message/LCIMMessage.m

@@ -28,6 +28,10 @@ @implementation LCIMMessagePatchedReason
 @implementation LCIMMessage
 
 + (instancetype)messageWithContent:(NSString *)content {
+    if (content && ![NSString _lc_isTypeOf:content]) {
+        [NSException raise:NSInvalidArgumentException
+                    format:@"The type of content is not `NSString`."];
+    }
     LCIMMessage *message = [[self alloc] init];
     message.content = content;
     return message;

AVOS/Sources/Realtime/IM/TypedMessages/LCIMTypedMessage.m

@@ -174,6 +174,10 @@ - (NSString *)text
 
 - (void)setText:(NSString *)text
 {
+    if (text && ![NSString _lc_isTypeOf:text]) {
+        [NSException raise:NSInvalidArgumentException
+                    format:@"The type of text is not `NSString`."];
+    }
     self.messageObject._lctext = text;
 }