Program[2]
  Statements[2]
    MethodCall[1](name: "puts", can_be_local_var: false, role: nil)
      CallParams[1]
        MethodCall[1](name: "+", can_be_local_var: false, role: nil)
          Integer[1](value: 1)
          CallParams[1]
            Integer[1](value: 1)
