* represent the length.
   */
  internal const val B1_MASK_LENGTH = 127

  internal const val OPCODE_CONTINUATION = 0x0
  internal const val OPCODE_TEXT = 0x1
  internal const val OPCODE_BINARY = 0x2

  internal const val OPCODE_CONTROL_CLOSE = 0x8
  internal const val OPCODE_CONTROL_PING = 0x9
  internal const val OPCODE_CONTROL_PONG = 0xa

  /**

import okhttp3.internal.discard
import okhttp3.internal.headersContentLength
import okhttp3.internal.http.ExchangeCodec
import okhttp3.internal.http.HTTP_CONTINUE
import okhttp3.internal.http.RequestLine
import okhttp3.internal.http.StatusLine
import okhttp3.internal.http.promisesBody
import okhttp3.internal.http.receiveHeaders
import okhttp3.internal.http1.Http1ExchangeCodec.Companion.TRAILERS_RESPONSE_BODY_TRUNCATED

* The same with `app/routers/users.py`, it's another submodule: `app.routers.users`.
* There's also a subdirectory `app/internal/` with another file `__init__.py`, so it's another "Python subpackage": `app.internal`.
* And the file `app/internal/admin.py` is another submodule: `app.internal.admin`.

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

The same file structure with comments:

```
.

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3

import okhttp3.ResponseBody.Companion.asResponseBody
import okhttp3.internal.http.promisesBody
import okio.BufferedSource
import okio.Source
import okio.buffer

/**
 * Transparent Compressed response support.
 *

import okhttp3.WebSocket
import okhttp3.WebSocketListener
import okhttp3.internal.closeQuietly
import okhttp3.internal.concurrent.Lockable
import okhttp3.internal.concurrent.Task
import okhttp3.internal.concurrent.TaskRunner
import okhttp3.internal.concurrent.assertLockHeld
import okhttp3.internal.connection.BufferedSocket
import okhttp3.internal.connection.RealCall
import okhttp3.internal.connection.asBufferedSocket
import okhttp3.internal.okHttpName

## Abhängigkeiten für Gruppen von *Pfadoperationen* { #dependencies-for-groups-of-path-operations }

import static org.apache.maven.lifecycle.internal.stub.LifecycleExecutionPlanCalculatorStub.POST_CLEAN;
import static org.apache.maven.lifecycle.internal.stub.LifecycleExecutionPlanCalculatorStub.POST_SITE;
import static org.apache.maven.lifecycle.internal.stub.LifecycleExecutionPlanCalculatorStub.PRE_CLEAN;
import static org.apache.maven.lifecycle.internal.stub.LifecycleExecutionPlanCalculatorStub.PRE_SITE;

## Dependencies for groups of *path operations* { #dependencies-for-groups-of-path-operations }

 */
package org.apache.maven.lifecycle.internal.concurrent;

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

import org.apache.maven.api.services.MessageBuilderFactory;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.lifecycle.internal.ExecutionEventCatapult;
import org.apache.maven.lifecycle.internal.LifecycleDependencyResolver;

      <item index="2" class="java.lang.String" itemvalue="org.gradle.internal.instrumentation.api.annotations.InterceptJvmCalls" />
      <item index="3" class="java.lang.String" itemvalue="org.gradle.internal.service.Provides" />
      <item index="4" class="java.lang.String" itemvalue="org.gradle.internal.scan.UsedByScanPlugin" />