lib/fitbit_api/helpers/utils.rb in fitbit_api-0.8.3 vs lib/fitbit_api/helpers/utils.rb in fitbit_api-0.9.0

@@ -1,8 +1,8 @@
 module FitbitAPI
   class Client
 
-    PERIODS = %w(1d 7d 30d 1w 1m 3m 6m 1y max)
+    PERIODS = %w(1d 7d 30d 1w 1m 3m 6m 1y max).freeze
 
     def format_date(date)
       if [Date, Time, DateTime].include?(date.class)
         date.strftime('%Y-%m-%d')
       elsif date.is_a? String