diff --git a/inc/tsg_send_log.h b/inc/tsg_send_log.h
index 9b2bc09..4542a1b 100644
--- a/inc/tsg_send_log.h
+++ b/inc/tsg_send_log.h
@@ -7,13 +7,6 @@
 #define	PRINTADDR(a, b)	((b)<RLOG_LV_FATAL ? printaddr(&(a->addr), a->threadnum) : "")
 #endif
 
-#include "rapidjson/document.h"     // rapidjson's DOM-style API
-#include "rapidjson/prettywriter.h" // for stringify JSON
-#include "rapidjson/stringbuffer.h"
-
-using namespace rapidjson;
-using namespace std;
-
 typedef	struct _tsg_log
 {
 	int result_num;
@@ -33,35 +26,13 @@ typedef enum _tld_type
 	TLD_TYPE_MAX
 }TLD_TYPE;
 
-struct TLD_handle_t
-{
-	int thread_id;
-	Document *document;
-};
-
+struct TLD_handle_t;
 struct tsg_log_instance_t;
 
 extern struct tsg_log_instance_t *g_tsg_log_instance;
 
 struct TLD_handle_t *TLD_create(int thread_id);
 
-/* You can add the same key multiple times without being overwritten
- *
- * Value array(kArrayType);
- * array.PushBack(elem1, handle->document->GetAllocator());
- * array.PushBack(elem2, handle->document->GetAllocator());
- * array.PushBack(elem3, handle->document->GetAllocator());
- * TLD_append(handle, key_string, &val_array, TLD_TYPE_OBJECT);
- *
- * Value object(kObjectType);
- * object.AddMember("key1", val1, handle->document->GetAllocator());
- * object.AddMember("key2", val2, handle->document->GetAllocator());
- * object.AddMember("key3", val2, handle->document->GetAllocator());
- * TLD_append(handle, key_string, &object, TLD_TYPE_OBJECT);
- *
- * TLD_append(handle, key_string, (void *)val_long, TLD_TYPE_LONG);
- * TLD_append(handle, key_string, (void *)val_string, TLD_TYPE_STRING);
- */
 int TLD_append(struct TLD_handle_t *handle, char *key, void *value, TLD_TYPE type);
 int TLD_append_streaminfo(struct tsg_log_instance_t *instance, struct TLD_handle_t *handle, struct streaminfo *a_stream);
 int TLD_cancel(struct TLD_handle_t *handle);
diff --git a/src/tsg_send_log.cpp b/src/tsg_send_log.cpp
index d2bff87..d9a4a35 100644
--- a/src/tsg_send_log.cpp
+++ b/src/tsg_send_log.cpp
@@ -22,9 +22,24 @@
 #include "tsg_send_log.h"
 #include "tsg_send_log_internal.h"
 
+#include "rapidjson/document.h"     // rapidjson's DOM-style API
+#include "rapidjson/prettywriter.h" // for stringify JSON
+#include "rapidjson/stringbuffer.h"
+
+
+using namespace rapidjson;
+using namespace std;
+
+
 char TSG_SEND_LOG_VERSION_20200729=0;
 struct tsg_log_instance_t *g_tsg_log_instance;
 
+struct TLD_handle_t
+{
+	int thread_id;
+	Document *document;
+};
+
 const id2field_t tld_type[TLD_TYPE_MAX]={{TLD_TYPE_UNKNOWN,	TLD_TYPE_UNKNOWN, 	"UNKOWN"},
 								 			{TLD_TYPE_LONG, 	TLD_TYPE_LONG,		"LONG"},
 								 			{TLD_TYPE_STRING, 	TLD_TYPE_STRING, 	"STRING"},