<img src="/img/tutorial/body/image02.png">

## Editor support

In your editor, inside your function you will get type hints and completion everywhere (this wouldn't happen if you received a `dict` instead of a Pydantic model):

<img src="/img/tutorial/body/image03.png">

You also get error checks for incorrect type operations:

<img src="/img/tutorial/body/image04.png">

	if len(msgs) != 0 {
		assert.Equal(t, len(msgs), 1)
	}

	var fdss []int
	for _, msg := range msgs {
		fds, err := unix.ParseUnixRights(&msg)
		if err != nil {
			panic(err)
		}
		fdss = append(fdss, fds...)
	}
	return m, fdss
}

func sendAck(c *net.UnixConn) {
	ack := &zdsapi.WorkloadResponse{
		Payload: &zdsapi.WorkloadResponse_Ack{
			Ack: &zdsapi.Ack{},
		},
	}

			return
		}
		creds, _ := sts.Get()

		bucketNames := []string{}

		for _, bucket := range buckets {
			log.Println(fmt.Sprintf("Bucket discovered: %s", bucket.Name))
			bucketNames = append(bucketNames, bucket.Name)
		}
		response := make(map[string]interface{})
		response["credentials"] = creds
		response["buckets"] = bucketNames
		c, err := json.MarshalIndent(response, "", "\t")
		if err != nil {

	for _, entity := range policyQueryRes.PolicyMappings {
		m := gotContent.ldapUserPolicyMappings
		for _, user := range entity.Users {
			m[user] = append(m[user], entity.Policy)
		}
		m = gotContent.ldapGroupPolicyMappings
		for _, group := range entity.Groups {
			m[group] = append(m[group], entity.Policy)
		}
	}

	{
		// We don't compare the values of the canned policies because server is

  // whenDeleted specifies what happens to PVCs created from StatefulSet
  // VolumeClaimTemplates when the StatefulSet is deleted. The default policy
  // of `Retain` causes PVCs to not be affected by StatefulSet deletion. The
  // `Delete` policy causes those PVCs to be deleted.
  optional string whenDeleted = 1;

  // whenScaled specifies what happens to PVCs created from StatefulSet

s3 := append(s2, s0...)            // append a slice              s3 is []int{0, 0, 2, 3, 5, 7, 0, 0}
s4 := append(s3[3:6], s3[2:]...)   // append overlapping slice    s4 is []int{3, 5, 7, 2, 3, 5, 7, 0, 0}

var t []interface{}
t = append(t, 42, 3.1415, "foo")   //                             t is []interface{}{42, 3.1415, "foo"}

var b []byte

        // padding is alwas binary 1 followed by binary 0s
        byte[] tail = new byte[padLen + 8];
        tail[0] = (byte)0x80;

        // append length before final transform:
        // save number of bits, casting the long to an array of 8 bytes
        // save low-order byte first.
        for (int i = 0; i < 8; i++)

{!../../docs_src/events/tutorial002.py!}
```

Hier schreibt die `shutdown`-Eventhandler-Funktion eine Textzeile `"Application shutdown"` in eine Datei `log.txt`.

/// info

In der Funktion `open()` bedeutet `mode="a"` „append“ („anhängen“), sodass die Zeile nach dem, was sich in dieser Datei befindet, hinzugefügt wird, ohne den vorherigen Inhalt zu überschreiben.

///

/// tip | "Tipp"

                atTotal += pool.Available
                if atTotal > choose && pool.Available > 0 {
                        return pool.Index
                }
        }
        // Should not happen, but print values just in case.
        panic(fmt.Errorf("reached end of serverPools (total: %v, atTotal: %v, choose: %v)", total, atTotal, choose))
}
```

## Other usages

import java.util.List;
import java.util.Set;
import junit.framework.TestCase;

/**
 * Tests relating to cache eviction: what does and doesn't count toward maximumSize, what happens
 * when maximumSize is reached, etc.
 *
 * @author mike nonemacher
 */
public class CacheEvictionTest extends TestCase {
  static final int MAX_SIZE = 100;

  public void testEviction_setMaxSegmentSize() {