/**
     * Retrieve toolchain of specified type from build context. It is expected that
     * <code>maven-toolchains-plugin</code> contains the configuration to select the appropriate
     * toolchain and is executed at the beginning of the build.
     *
     * @param type the type, must not be {@code null}
     * @param context the Maven session, must not be {@code null}

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"context"
	"net/http"
	"net/url"
)

// Writes S3 compatible copy part range error.
func writeCopyPartErr(ctx context.Context, w http.ResponseWriter, err error, url *url.URL) {
	switch err {
	case errInvalidRange:

	sysCPUSystemMD    = NewGaugeMD(sysCPUSystem, "CPU system time")
	sysCPUUserMD      = NewGaugeMD(sysCPUUser, "CPU user time")
)

// loadCPUMetrics - `MetricsLoaderFn` for system CPU metrics.
func loadCPUMetrics(ctx context.Context, m MetricValues, c *metricsCache) error {
	cpuMetrics, _ := c.cpuMetrics.Get()

	if cpuMetrics.LoadStat != nil {
		m.Set(sysCPULoad, cpuMetrics.LoadStat.Load1)

					t.Error("expected hash", testcase.hash, "got", sctx.Layout.pools[0].cmdline)
				}
			}
		})
	}
}

// Tests initializing new object layer.
func TestNewObjectLayer(t *testing.T) {
	ctx, cancel := context.WithCancel(t.Context())
	defer cancel()
	// Tests for ErasureSD object layer.
	nDisks := 1
	disks, err := getRandomDisks(nDisks)
	if err != nil {
		t.Fatal("Failed to create drives for the backend")
	}

        buf.enc_ndr_short(max_recv);
        buf.enc_ndr_long(0); /* assoc. group */
        buf.enc_ndr_small(1); /* num context items */
        buf.enc_ndr_small(0); /* reserved */
        buf.enc_ndr_short(0); /* reserved2 */
        buf.enc_ndr_short(0); /* context id */
        buf.enc_ndr_small(1); /* number of items */
        buf.enc_ndr_small(0); /* reserved */
        binding.uuid.encode(buf);

        }
    }

    /**
     * Sets the query builder for this context.
     * @param queryBuilder The query builder to use.
     */
    public void setQueryBuilder(final QueryBuilder queryBuilder) {
        this.queryBuilder = queryBuilder;
    }

    /**
     * Adds sort builders to the query context.
     * @param sortBuilders Variable number of sort builders to add.
     */

- Callers of `wait.ExponentialBackoffWithContext` now must pass a `ConditionWithContextFunc` to be consistent with the signature and avoid creating a duplicate context. If your condition does not need a context you can use the `ConditionFunc.WithContext()` helper to ignore the context, or use `ExponentialBackoff` directly. ([#115113](https://github.com/kubernetes/kubernetes/pull/115113), [@smarterclayton](https://github.com/smarterclayton))

### Async Context Manager

Si revisas, la función está decorada con un `@asynccontextmanager`.

Eso convierte a la función en algo llamado un "**async context manager**".

{* ../../docs_src/events/tutorial003.py hl[1,13] *}

Un **context manager** en Python es algo que puedes usar en una declaración `with`, por ejemplo, `open()` puede ser usado como un context manager:

```Python

    Builder<E> combine(Builder<E> other) {
      addAll(other.contents, other.size);
      return this;
    }

    /**
     * Returns a newly-created {@code ImmutableList} based on the contents of the {@code Builder}.
     */
    @Override
    public ImmutableList<E> build() {
      forceCopy = true;
      return asImmutableList(contents, size);
    }

    /**

}

var (
	// globalServerConfig server config.
	globalServerConfig   config.Config
	globalServerConfigMu sync.RWMutex
)

func validateSubSysConfig(ctx context.Context, s config.Config, subSys string, objAPI ObjectLayer) error {
	switch subSys {
	case config.SiteSubSys: