```Python
with open("./somefile.txt") as f:
    contents = f.read()
    print(contents)
```

Underneath, the `open("./somefile.txt")` creates an object that is called a "Context Manager".

When the `with` block finishes, it makes sure to close the file, even if there were exceptions.

When you create a dependency with `yield`, **FastAPI** will internally create a context manager for it, and combine it with some other related tools.

        super(messageBuilderFactory, secDispatcher);
    }

    @Override
    protected int doExecute(DefaultEncryptInvoker.LocalContext context) throws Exception {
        String cleartext = context.reader.readLine("Enter the password to encrypt: ", '*');
        context.terminal.writer().println(secDispatcher.encrypt(cleartext, null));
        return OK;
    }

```jinja hl_lines="7"
{!../../docs_src/templates/templates/item.html!}
```

### Template Context Values

In the HTML that contains:

{% raw %}

```jinja
Item ID: {{ id }}
```

{% endraw %}

...it will show the `id` taken from the "context" `dict` you passed:

```Python
{"id": id}
```

For example, with an ID of `42`, this would render:

```html

 */
package jcifs.context;


import jcifs.CIFSContext;
import jcifs.Credentials;
import jcifs.smb.CredentialsInternal;
import jcifs.smb.NtlmAuthenticator;
import jcifs.smb.NtlmPasswordAuthenticator;
import jcifs.smb.SmbAuthException;
import jcifs.smb.SmbRenewableCredentials;


/**
 * Context wrapper supplying alternate credentials
 * 
 * @author mbechler
 *

		secretNamespace = opt.Namespace
	}
	return client.Kube().CoreV1().Secrets(secretNamespace).Get(context.TODO(), secretName, metav1.GetOptions{})
}

func getOrCreateServiceAccount(client kube.CLIClient, opt RemoteSecretOptions) (*v1.ServiceAccount, error) {
	if sa, err := client.Kube().CoreV1().ServiceAccounts(opt.Namespace).Get(
		context.TODO(), opt.ServiceAccountName, metav1.GetOptions{}); err == nil {
		return sa, nil

		"Total number of messages sent since start",
		targetID)
)

// loadAuditMetrics - `MetricsLoaderFn` for audit
// such as failed messages and total messages.
func loadAuditMetrics(_ context.Context, m MetricValues, c *metricsCache) error {
	audit := logger.CurrentStats()
	for id, st := range audit {
		labels := []string{targetID, id}
		m.Set(auditFailedMessages, float64(st.FailedMessages), labels...)

};

absl::optional<std::vector<MaybeParallelTensorOwned>> ExecuteWithSpecialOps(
    const ParallelDevice& parallel_device,
    const std::string& parallel_device_name, TFE_Context* context,
    std::vector<MaybeParallelTensorUnowned> inputs, const char* operation_name,
    const TFE_OpAttrs* attributes, int expected_max_outputs,
    TF_Status* status) {

				if err != nil {
					return err
				}
				pod, err := kubeClient.Kube().CoreV1().Pods(podNs).Get(context.TODO(), podName, metav1.GetOptions{})
				if err != nil {
					return err
				}
				ns, err := kubeClient.Kube().CoreV1().Namespaces().Get(context.TODO(), podNs, metav1.GetOptions{})
				if err != nil {
					return err
				}
				podLabels = pod.GetLabels()
				nsLabels = ns.GetLabels()

  }
};

// An abstract operation describes an operation by its type, name, and
// attributes. It can be "executed" by the context with some input tensors.
// It is allowed to reusing the same abstract operation for multiple execution
// on a given context, with the same or different input tensors.
class TracingOperation : public AbstractOperation {
 protected:
  explicit TracingOperation(AbstractOperationKind kind)

package cmd

import (
	"bytes"
	"context"
	"fmt"
	"os"
	"path/filepath"
	"runtime"
	"testing"
	"time"

	"github.com/minio/madmin-go/v3"
)

// Returns the latest updated FileInfo files and error in case of failure.
func getLatestFileInfo(ctx context.Context, partsMetadata []FileInfo, defaultParityCount int, errs []error) (FileInfo, error) {