Create utils.py

utils.py

@@ -0,0 +1,15 @@
+
+def calc_seasonality(freq):
+   match freq:
+     case 'Y':
+       return 10
+     case 'Q':
+       return 4
+     case 'M':
+       return 12
+     case 'W':
+       return 4
+     case 'D':
+       return 7
+     case _:
+       return "You didn't choose the correct frequency. Use: Y, Q, M, W and D"