test/expect/TestTensorBoard.test_hparams_string.expect

(value {
  tag: "_hparams_/experiment"
  metadata {
    plugin_data {
      plugin_name: "hparams"
      content: "\022\036\"\016\n\nstring_var \001*\014\n\n\022\010accuracy"
    }
  }
}
, value {
  tag: "_hparams_/session_start_info"
  metadata {
    plugin_data {
      plugin_name: "hparams"
      content: "\032\024\n\022\n\nstring_var\022\004\032\002hi"
    }
  }
}
, value {
  tag: "_hparams_/session_end_info"
  metadata {
    plugin_data {
      plugin_name: "hparams"
      content: "\"\002\010\001"
    }
  }
}
)