class TestClass
    def self.testfunc(val)
        case val
            when Hash
                # puts "hash"
                val.each do |k,v|
                    # puts "    #{k} => #{v}"
                end
                # puts "done"
            when Array
                # puts "array"
                val.each do |x|
                    # puts "    #{x}"
                end
            else
                # puts val
        end
        val
    end
end