lib/how_is/fetcher.rb in how_is-1.0.0 vs lib/how_is/fetcher.rb in how_is-2.0.0

@@ -22,12 +22,13 @@
     # Struct defines #to_h, but not #to_hash, so we alias them.
     alias_method :to_hash, :to_h
   end
 
 
-  Contract String, C::RespondTo[:issues, :pulls] => Results
+  Contract String, C::Or[C::RespondTo[:issues, :pulls], nil] => Results
   def call(repository,
-        github = Github.new(auto_pagination: true))
+        github = nil)
+    github ||= Github.new(auto_pagination: true)
     user, repo = repository.split('/', 2)
     issues  = github.issues.list user: user, repo: repo
     pulls   = github.pulls.list  user: user, repo: repo
 
     Results.new(