.isCloseTo(1500.0, 250.0)

    // The client pinged the server 3 times, and it has ponged back 3 times.
    assertThat(webSocket.sentPingCount()).isEqualTo(3)
    assertThat(server.receivedPingCount()).isEqualTo(3)
    assertThat(webSocket.receivedPongCount()).isEqualTo(3)

    // The server has never pinged the client.
    assertThat(server.receivedPongCount()).isEqualTo(0)

      {
        "lang_en": {
          "match": "*_en-ie",
          "mapping": {
            "type": "text",
            "analyzer": "irish_analyzer"
          }
        }
      },
      {
        "lang_es": {
          "match": "*_es",
          "mapping": {
            "type": "text",
            "analyzer": "spanish_analyzer"
          }
        }
      },
      {
        "lang_et": {

      {
        "lang_en": {
          "match": "*_en-ie",
          "mapping": {
            "type": "text",
            "analyzer": "irish_analyzer"
          }
        }
      },
      {
        "lang_es": {
          "match": "*_es",
          "mapping": {
            "type": "text",
            "analyzer": "spanish_analyzer"
          }
        }
      },
      {
        "lang_et": {

pkg database/sql/driver, type NamedValue struct, Ordinal int
pkg database/sql/driver, type NamedValue struct, Value Value
pkg database/sql/driver, type Pinger interface { Ping }
pkg database/sql/driver, type Pinger interface, Ping(context.Context) error
pkg database/sql/driver, type QueryerContext interface { QueryContext }

  /** True if this web socket failed and the listener has been notified. */
  private var failed = false

  /** Total number of pings sent by this web socket. */
  private var sentPingCount = 0

  /** Total number of pings received by this web socket. */
  private var receivedPingCount = 0

  /** Total number of pongs received by this web socket. */
  private var receivedPongCount = 0

      {
        "lang_en": {
          "match": "*_en-ie",
          "mapping": {
            "type": "text",
            "analyzer": "irish_analyzer"
          }
        }
      },
      {
        "lang_es": {
          "match": "*_es",
          "mapping": {
            "type": "text",
            "analyzer": "spanish_analyzer"
          }
        }
      },
      {
        "lang_et": {

		DB:       db,
		ConnPool: db.ConnPool,
		Context:  context.Background(),
		Clauses:  map[string]clause.Clause{},
	}

	if err == nil && !config.DisableAutomaticPing {
		if pinger, ok := db.ConnPool.(interface{ Ping() error }); ok {
			err = pinger.Ping()
		}
	}

	if err != nil {
		config.Logger.Error(context.Background(), "failed to initialize database, got error %v", err)
	}

	return
}

  private val settingsListenerQueue = taskRunner.newQueue()

  /** User code to run in response to push promise events. */
  private val pushObserver: PushObserver = builder.pushObserver

  // Total number of pings send and received of the corresponding types. All guarded by this.
  private var intervalPingsSent = 0L
  private var intervalPongsReceived = 0L
  private var degradedPingsSent = 0L
  private var degradedPongsReceived = 0L

    client.processNextFrame()
    taskFaker.runTasks()
    server.webSocket!!.pong("pong 3".encodeUtf8())
    client.processNextFrame()

    // After 500ms the client automatically pings and the server pongs back.
    taskFaker.advanceUntil(ns(500L))
    server.processNextFrame() // Ping.
    client.processNextFrame() // Pong.

///

Uma <a href="https://pt.wikipedia.org/wiki/Variável_de_ambiente" class="external-link" target="_blank">variável de ambiente</a> (abreviada em inglês para "env var") é uma variável definida fora do código Python, no sistema operacional, e pode ser lida pelo seu código Python (ou por outros programas).