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assert_valid_keys(*valid_keys) public

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# File activesupport/lib/active_support/core_ext/hash/keys.rb, line 46
        def assert_valid_keys(*valid_keys)
          unknown_keys = keys - [valid_keys].flatten
          raise(ArgumentError, "Unknown key(s): #{unknown_keys.join(", ")}") unless unknown_keys.empty?
        end
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