```Python
from datetime import date

from pydantic import BaseModel

# Declara una variable como un str
# y obtiene soporte del editor dentro de la función
def main(user_id: str):
    return user_id


# Un modelo de Pydantic
class User(BaseModel):
    id: int
    name: str
    joined: date
```

Que luego puede ser usado como:

```Python
my_user: User = User(id=3, name="John Doe", joined="2018-07-19")

Many packages that simplify it a lot have to make many compromises with the data model, database, and available features. And some of these packages that simplify things too much actually have security flaws underneath.

---

**FastAPI** doesn't make any compromise with any database, data model or tool.

It gives you all the flexibility to choose the ones that fit your project the best.

        excludedPackages.add("org.gradle.plugins.ide.eclipse.model");
        excludedPackages.add("org.gradle.plugins.ide.idea.model");
        excludedPackages.add("org.gradle.api.tasks.testing.logging");

        // TODO - rename some incubating types to remove collisions and then remove these exclusions
        excludedPackages.add("org.gradle.plugins.binaries.model");

 * under the License.
 */
package org.apache.maven.lifecycle.internal;

import java.util.ArrayList;
import java.util.List;

import org.apache.maven.lifecycle.internal.builder.BuilderCommon;
import org.apache.maven.model.Plugin;
import org.apache.maven.plugin.MojoExecution;
import org.apache.maven.plugin.descriptor.MojoDescriptor;
import org.apache.maven.project.MavenProject;

/**
 * <p>

/**
 * <p>
 * A {@link Builder} encapsulates a strategy for building a set of Maven projects. The default strategy in Maven builds
 * the projects serially, but a {@link Builder} can employ any type of concurrency model to build the projects.
 * </p>
 * <strong>Note:</strong> This interface is part of work in progress and can be changed or removed without notice.
 */
public interface Builder {
    //

	if updatedAt1.Format(time.RFC3339Nano) == animal.UpdatedAt.Format(time.RFC3339Nano) {
		t.Errorf("UpdatedAt should be updated")
	}

	var animals []Animal
	DB.Find(&animals)
	if count := DB.Model(Animal{}).Where("1=1").Update("CreatedAt", time.Now().Add(2*time.Hour)).RowsAffected; count != int64(len(animals)) {
		t.Error("RowsAffected should be correct when do batch update")
	}

  <modelVersion>4.0.0</modelVersion>

  <groupId>inheritance</groupId>
  <artifactId>child</artifactId>
  <version>12-SNAPSHOT</version>

  <!-- name is not inherited, but description is -->
  <description>Model inheritance description</description>
  <url>http://www.apache.org/child/</url><!-- child's artifactId appended to parent url -->

  <mailingLists>
    <mailingList>
      <name>parent</name>

package tests_test

import (
	"testing"
	"time"

	"gorm.io/gorm"
)

func TestDefaultValue(t *testing.T) {
	type Harumph struct {
		gorm.Model
		Email   string    `gorm:"not null;index:,unique"`
		Name    string    `gorm:"notNull;default:foo"`
		Name2   string    `gorm:"size:233;not null;default:'foo'"`
		Name3   string    `gorm:"size:233;notNull;default:''"`
		Age     int       `gorm:"default:18"`

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.model.interpolation;

import java.util.Date;
import java.util.Properties;

import org.codehaus.plexus.interpolation.AbstractValueSource;

/**
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.model.interpolation;

import java.util.Date;
import java.util.Properties;

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertTrue;

@Deprecated