成员的完整列表，这些成员属于 AgoraChatLocationMessageBody,包括所有继承而来的类成员

	address	AgoraChatLocationMessageBody
	buildingName	AgoraChatLocationMessageBody
-	initWithLatitude:longitude:address:	AgoraChatLocationMessageBody
-	initWithLatitude:longitude:address:buildingName:	AgoraChatLocationMessageBody
	latitude	AgoraChatLocationMessageBody
	longitude	AgoraChatLocationMessageBody
-	NS_UNAVAILABLE (定义于 AgoraChatLocationMessageBody)	AgoraChatLocationMessageBody
	operationTime	AgoraChatMessageBody
	operatorCount	AgoraChatMessageBody
	operatorId	AgoraChatMessageBody
	type	AgoraChatMessageBody