upgrade

src/client/mod.rs

@@ -28,4 +28,15 @@ pub struct PushMessage {
     pub key: Option<String>,
     pub qos: Qos,
     pub payload: Option<String>,
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct DeviceMessage {
+    pub devices: Vec<i32>,
+    pub business_type: i32,
+    pub message_id: i64,
+    pub key: Option<String>,
+    pub qos: Qos,
+    pub payload: Option<String>,
 }
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