Fix bug in get_counts argument

Author: Peter Johnson

evaluation_function/models/shannon_words_ngram.py

@@ -30,7 +30,7 @@ def log(msg):
 # If creating locally, to be copied when deployed:
 FILE = MODEL_DIR / "ngram_counts.pkl.bz2"
 
-def get_counts(n=3, dev):
+def get_counts(n=3, dev=False):
     print(f"Loading/building n-gram counts for n={n}...")
     if os.path.exists(FILE):
         try: