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Type Class, With From clause wildcard
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module corpus_test_typeclass is

  class Things from Others with _ is end

end

---

(module
  name: (identifier)
  body: (module_body
    (type_class_def
      name: (identifier)
      from: (from_definition_clause
        from: (identifier_reference
          (identifier))
        (mixin_with_members
          wildcard: (wildcard)))
      body: (type_class_body))))
