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

	authenticate	FSSOAPRequestProperties
	content_type	FSSOAPRequestProperties
-	init	FSSOAPRequestProperties
-	initWithRequest_properties:	FSSOAPRequestProperties
	is_encode	FSSOAPRequestProperties
	is_wiredump	FSSOAPRequestProperties
	request_content	FSSOAPRequestProperties
	request_header	FSSOAPRequestProperties
	request_url	FSSOAPRequestProperties
-	set:request_content:soap_action:soap_namespace:soap_version:content_type:is_encode:is_wiredump:request_header:authenticate:	FSSOAPRequestProperties
	soap_action	FSSOAPRequestProperties
	soap_namespace	FSSOAPRequestProperties
	soap_version	FSSOAPRequestProperties