bugfixes?

src/videos.rs

@@ -213,6 +213,11 @@ impl VideoFormat {
             headers.insert(key, value);
         }
     }
+
+    pub fn protocol(mut self, protocol: String) -> Self {
+        self.protocol = Some(protocol);
+        self
+    }
 }
 #[derive(serde::Serialize, Debug)]
 pub struct Videos {