fixing import errors

librespot/audio/AudioKeyManager.py

@@ -52,8 +52,8 @@ class AudioKeyManager(PacketsReceiver):
                 return self.get_audio_key(gid, file_id, False)
             raise RuntimeError(
                 "Failed fetching audio key! gid: {}, fileId: {}".format(
-                    Utils.Utils.bytes_to_hex(gid),
-                    Utils.Utils.bytes_to_hex(file_id)))
+                    Utils.bytes_to_hex(gid),
+                    Utils.bytes_to_hex(file_id)))
 
         return key
 

librespot/audio/cdn/CdnFeedHelper.py

@@ -64,7 +64,7 @@ class CdnFeedHelper:
 
         url = resp.url
         CdnFeedHelper._LOGGER.debug("Fetched external url for {}: {}".format(
-            Utils.Utils.bytes_to_hex(episode.gid), url))
+            Utils.bytes_to_hex(episode.gid), url))
 
         streamer = session.cdn().stream_external_episode(
             episode, url, halt_listener)

librespot/audio/storage/ChannelManager.py

@@ -74,7 +74,7 @@ class ChannelManager(Closeable, PacketsReceiver.PacketsReceiver):
         else:
             self._LOGGER.warning(
                 "Couldn't handle packet, cmd: {}, payload: {}".format(
-                    packet.cmd, Utils.Utils.bytes_to_hex(packet.payload)))
+                    packet.cmd, Utils.bytes_to_hex(packet.payload)))
 
     def close(self) -> None:
         self._executorService.shutdown()