Steepfile in ika3-0.8.1 vs Steepfile in ika3-0.9.0

@@ -1,8 +1,15 @@
 # frozen_string_literal: true
 
+D = Steep::Diagnostic
+
 target :lib do
   signature 'sig'
 
   check 'lib'
   repo_path '.gem_rbs_collection'
+
+  configure_code_diagnostics do |hash|
+    hash[D::Ruby::MethodDefinitionMissing] = :warning
+    hash[D::Ruby::UnknownConstant] = :information
+  end
 end