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-rw-r--r--gr-channels/python/channels/qa_fading_model.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/gr-channels/python/channels/qa_fading_model.py b/gr-channels/python/channels/qa_fading_model.py
index 1e99312e82..84ca531d6d 100644
--- a/gr-channels/python/channels/qa_fading_model.py
+++ b/gr-channels/python/channels/qa_fading_model.py
@@ -20,6 +20,7 @@
# Boston, MA 02110-1301, USA.
#
+
from gnuradio import gr, gr_unittest, analog, blocks, channels
import math