* Das Gleiche gilt für `app/routers/users.py`, es ist ein weiteres Submodul: `app.routers.users`.
* Es gibt auch ein Unterverzeichnis `app/internal/` mit einer weiteren Datei `__init__.py`, es handelt sich also um ein weiteres „Python-Subpackage“: `app.internal`.
* Und die Datei `app/internal/admin.py` ist ein weiteres Submodul: `app.internal.admin`.

<img src="/img/tutorial/bigger-applications/package.drawio.svg">

Die gleiche Dateistruktur mit Kommentaren:

* Точно также `app/routers/users.py` является ещё одним суб-модулем: `app.routers.users`.
* Подкаталог `app/internal/`, содержащий файл `__init__.py`, является ещё одним суб-пакетом: `app.internal`.
* А файл `app/internal/admin.py` является ещё одним суб-модулем: `app.internal.admin`.

<img src="/img/tutorial/bigger-applications/package.drawio.svg">

Та же самая файловая структура приложения, но с комментариями:

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

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;

import org.apache.maven.api.services.MessageBuilderFactory;
import org.apache.maven.execution.MavenSession;

 * limitations under the License.
 */
package okhttp3.internal.http2

import java.io.EOFException
import java.io.IOException
import java.io.InterruptedIOException
import java.net.SocketTimeoutException
import java.util.ArrayDeque
import okhttp3.Headers
import okhttp3.internal.concurrent.Lockable
import okhttp3.internal.concurrent.assertLockNotHeld
import okhttp3.internal.concurrent.notifyAll
import okhttp3.internal.concurrent.wait

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

import java.util.List;

import org.apache.maven.lifecycle.MavenExecutionPlan;
import org.apache.maven.lifecycle.internal.stub.LifecycleExecutionPlanCalculatorStub;
import org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub;
import org.apache.maven.plugin.MojoExecution;
import org.junit.jupiter.api.Test;

import org.eclipse.aether.DefaultRepositorySystemSession;
import org.eclipse.aether.internal.impl.DefaultChecksumPolicyProvider;
import org.eclipse.aether.internal.impl.DefaultRemoteRepositoryManager;
import org.eclipse.aether.internal.impl.DefaultRepositoryKeyFunctionFactory;
import org.eclipse.aether.internal.impl.DefaultUpdatePolicyAnalyzer;
import org.eclipse.aether.internal.impl.SimpleLocalRepositoryManagerFactory;

 */
class TaskQueue internal constructor(
  internal val taskRunner: TaskRunner,
  internal val name: String,
) {
  internal var shutdown = false

  /** This queue's currently-executing task, or null if none is currently executing. */
  internal var activeTask: Task? = null

  /** Scheduled tasks ordered by [Task.nextExecuteNanoTime]. */
  internal val futureTasks = mutableListOf<Task>()

 */
package okhttp3.internal.connection

import java.io.IOException
import java.net.InetAddress
import java.net.InetSocketAddress
import java.net.Proxy
import java.net.SocketException
import java.net.UnknownHostException
import okhttp3.Address
import okhttp3.HttpUrl
import okhttp3.Route
import okhttp3.internal.canParseAsIpAddress
import okhttp3.internal.immutableListOf

    name.equals("Set-Cookie", ignoreCase = true)

internal fun Char.parseHexDigit(): Int =
  when (this) {
    in '0'..'9' -> this - '0'
    in 'a'..'f' -> this - 'a' + 10
    in 'A'..'F' -> this - 'A' + 10
    else -> -1
  }

internal infix fun Byte.and(mask: Int): Int = toInt() and mask

internal infix fun Short.and(mask: Int): Int = toInt() and mask

internal infix fun Int.and(mask: Long): Long = toLong() and mask

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.internal

import java.util.concurrent.atomic.AtomicReference
import kotlin.reflect.KClass

/**
 * An immutable collection of key-value pairs implemented as a singly-linked list.
 *