feat:listenkey

@@ -146,6 +146,20 @@ class BinanceSpot
         $method = 'GET';
         return $this->requestAccount($method, $path, $param);
     }
+    //生成 Listen Key (USER_STREAM)
+    public function  listenKey($param)
+    {
+        $path = '/api/v3/userDataStream';
+        $method = 'POST';
+        return $this->requestAccount($method, $path, $param);
+    }
+    //延长 Listen Key 有效期 (USER_STREAM)
+    public function  listenKeyDelay($param)
+    {
+        $path = '/api/v3/userDataStream';
+        $method = 'PUT';
+        return $this->requestAccount($method, $path, $param);
+    }
 
     /*
      * ==================================