lib/twilio-ruby/rest/fax/v1/fax.rb in twilio-ruby-5.0.0.rc24 vs lib/twilio-ruby/rest/fax/v1/fax.rb in twilio-ruby-5.0.0.rc25

@@ -315,11 +315,14 @@
             @version.delete('delete', @uri)
           end
 
           ##
           # Access the media
-          # @return [FaxMediaList] FaxMediaList
+          # @return [FaxMediaList] if a(n) FaxMediaList object was created.
+          # @return [FaxMediaContext] if a(n) FaxMediaContext object was created.
           def media(sid=:unset)
+            raise ArgumentError, 'sid cannot be nil' if sid.nil?
+
             if sid != :unset
               return FaxMediaContext.new(
                   @version,
                   @solution[:sid],
                   sid,
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