import java.util.Objects;
import java.util.Properties;

/**
 * <p>
 * Generic implementation of version comparison.
 * </p>
 * <p>
 * Features:
 * <ul>
 * <li>mixing of '<code>-</code>' (hyphen) and '<code>.</code>' (dot) separators,</li>
 * <li>transition between characters and digits also constitutes a separator:
 *     <code>1.0alpha1 =&gt; [1, [alpha, 1]]</code></li>
 * <li>unlimited number of version components,</li>

// characters long, and it must be a sequence of one or more labels
// separated by periods. Each label can contain lowercase ascii
// letters, decimal digits and hyphens, but must not begin or end with
// a hyphen. See:
// http://docs.aws.amazon.com/AmazonS3/latest/dev/BucketRestrictions.html
func IsValidBucketName(bucket string) bool {
	// Special case when bucket is equal to one of the meta buckets.

  // separated by commas. The numbers are listed in increasing order. Three or
  // more consecutive numbers are compressed and represented by the first and
  // last element of the series, separated by a hyphen.
  // For example, if the completed indexes are 1, 3, 4, 5 and 7, they are
  // represented as "1,3-5,7".
  // +optional
  optional string completedIndexes = 7;

```

### Generische Typen mit Typ-Parametern

Es gibt Datenstrukturen, die andere Werte enthalten können, wie etwa `dict`, `list`, `set` und `tuple`. Die inneren Werte können auch ihren eigenen Typ haben.

Diese Typen mit inneren Typen werden „**generische**“ Typen genannt. Es ist möglich, sie mit ihren inneren Typen zu deklarieren.

		t.Errorf("no error should happen when find languages with code, but got %v", err)
	} else if len(langs2) != 3 {
		t.Errorf("should only find only 3 languages, but got %+v", langs2)
	}

	DB.Clauses(clause.OnConflict{DoNothing: true}).Create(&langs)
	var langs3 []Language
	if err := DB.Find(&langs3, "code LIKE ?", "upsert-slice%").Error; err != nil {
		t.Errorf("no error should happen when find languages with code, but got %v", err)

* Datenkonvertierung
* Datenvalidierung
* Automatische Dokumentation

## Spezielle Typen und Validierungen

Abgesehen von normalen einfachen Typen, wie `str`, `int`, `float`, usw. können Sie komplexere einfache Typen verwenden, die von `str` erben.

)

func TestScannerValuer(t *testing.T) {
	DB.Migrator().DropTable(&ScannerValuerStruct{})
	if err := DB.Migrator().AutoMigrate(&ScannerValuerStruct{}); err != nil {
		t.Fatalf("no error should happen when migrate scanner, valuer struct, got error %v", err)
	}

	data := ScannerValuerStruct{
		Name:     sql.NullString{String: "name", Valid: true},
		Gender:   &sql.NullString{String: "M", Valid: true},

Wenn Sie eine zweiminütige Auffrischung benötigen, wie man Python-Typen verwendet (auch wenn Sie FastAPI nicht benutzen), schauen Sie sich das kurze Tutorial an: [Einführung in Python-Typen](python-types.md){.internal-link target=_blank}.

Sie schreiben Standard-Python mit Typen:

```Python
from typing import List, Dict
from datetime import date

from pydantic import BaseModel

 *   <li>enqueuing weak references to unreachable referents in their reference queue
 * </ul>
 *
 * <p>This class uses (possibly repeated) invocations of {@link java.lang.System#gc()} to cause
 * finalization to happen. However, a call to {@code System.gc()} is specified to be no more than a
 * hint, so this technique may fail at the whim of the JDK implementation, for example if a user

		"birthday":   time.Now(),
		"active":     f,
	}

	for k, v := range newValues {
		if err := userSchema.FieldsByDBName[k].Set(context.Background(), reflectValue, v); err != nil {
			t.Errorf("no error should happen when assign value to field %v, but got %v", k, err)
		}
	}
	newValues["updated_at"] = time.Time{}
	newValues["active"] = false
	checkField(t, userSchema, reflectValue, newValues)

	// test valuer and other type