Code cleanup

Signed-off-by: Yuan Si <do4suki@gmail.com>

model/event.go

@@ -0,0 +1,20 @@
+package model
+
+// EventsResp ...
+type EventsResp struct {
+	ResponseData EventsRes     `json:"response_data"`
+	ReleaseInfo  []interface{} `json:"release_info"`
+	StatusCode   int           `json:"status_code"`
+}
+
+// EventsRes ...
+type EventsRes struct {
+	TargetList      []TargetList `json:"target_list"`
+	ServerTimestamp int64        `json:"server_timestamp"`
+}
+
+// TargetList ...
+type TargetList struct {
+	Position      int  `json:"position"`
+	IsDisplayable bool `json:"is_displayable"`
+}