Aggiunta istruzione per ottenere il gruppo del file scaricato

diff --git a/mlmanager.py b/mlmanager.py
index 6ea69d0..8bdb785 100644
--- a/mlmanager.py
+++ b/mlmanager.py
@@ -356,8 +356,13 @@ class Download():
     return str(self._type)

   def get_filename(self):
+    """Return filename"""
     return self._filename

+  def get_group(self):
+    """Return group"""
+    return self._group
+
   def get_duration(self):
     """
     Obtain the duration as a tuple (hours, minutes, seconds)