// down `ch`
	go func() {
		for {
		outerLoop:
			watchCh := ies.client.Watch(ctx,
				keyPath, etcd.WithPrefix(), etcd.WithKeysOnly())

			for {
				select {
				case <-ctx.Done():
					return
				case watchResp, ok := <-watchCh:
					if !ok {
						time.Sleep(1 * time.Second)
						// Upon an error on watch channel
						// re-init the watch channel.

### Чтение героев { #read-heroes }

Мы можем **читать** записи `Hero` из базы данных с помощью `select()`. Можно добавить `limit` и `offset` для постраничного вывода результатов.

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[48:55] hl[51:52,54] *}

### Чтение одного героя { #read-one-hero }

            textarea.value = text;
            textarea.style.position = 'fixed';
            textarea.style.opacity = '0';
            document.body.appendChild(textarea);
            textarea.select();
            try {
                document.execCommand('copy');
                showCopySuccess(button);
            } catch (err) {
                showCopyError(button);
            }

	// We have however a dynamic downstream buffer (ch).
	buf := bytes.NewBuffer(grid.GetByteBuffer())
	enc := json.NewEncoder(buf)
	tmpEvt := struct{ Records []event.Event }{[]event.Event{{}}}
	for {
		select {
		case <-ctx.Done():
			grid.PutByteBuffer(buf.Bytes())
			return nil
		case ev := <-ch:
			buf.Reset()
			tmpEvt.Records[0] = ev
			if err := enc.Encode(tmpEvt); err != nil {

	resourceMetricsMapMu.Unlock()
	metricsTimer := time.NewTimer(resourceMetricsCollectionInterval)
	defer metricsTimer.Stop()

	collectLocalResourceMetrics()

	for {
		select {
		case <-GlobalContext.Done():
			return
		case <-metricsTimer.C:
			collectLocalResourceMetrics()

			// Reset the timer for next cycle.
			metricsTimer.Reset(resourceMetricsCollectionInterval)
		}

    }

    // ===================================================================================
    //                                                                              Select
    //                                                                              ======
    @Override
    protected int delegateSelectCountUniquely(final ConditionBean cb) {

### Leer Heroes { #read-heroes }

Podemos **leer** `Hero`s de la base de datos usando un `select()`. Podemos incluir un `limit` y `offset` para paginar los resultados.

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[48:55] hl[51:52,54] *}

### Leer Un Hero { #read-one-hero }

    proxySelector.assertRequests() // No proxy selector requests!
  }

  @Test fun proxySelectorReturnsNull() {
    val nullProxySelector: ProxySelector =
      object : ProxySelector() {
        override fun select(uri: URI): List<Proxy>? {
          assertThat(uri.host).isEqualTo(uriHost)
          return null
        }

        override fun connectFailed(
          uri: URI,
          socketAddress: SocketAddress,

import java.util.SortedSet;
import java.util.TreeMap;
import java.util.TreeSet;
import org.jspecify.annotations.Nullable;

/**
 * An immutable builder for {@link Multimap} instances, letting you independently select the desired
 * behaviors (for example, ordering) of the backing map and value-collections. Example:
 *
 * {@snippet :
 * ListMultimap<UserId, ErrorResponse> errorsByUser =

import java.util.SortedSet;
import java.util.TreeMap;
import java.util.TreeSet;
import org.jspecify.annotations.Nullable;

/**
 * An immutable builder for {@link Multimap} instances, letting you independently select the desired
 * behaviors (for example, ordering) of the backing map and value-collections. Example:
 *
 * {@snippet :
 * ListMultimap<UserId, ErrorResponse> errorsByUser =