assertThrows(IllegalStateException.class, () -> MinMaxPriorityQueue.isEvenLevel((1 << 31) - 1));
    assertThrows(
        IllegalStateException.class, () -> MinMaxPriorityQueue.isEvenLevel(Integer.MAX_VALUE));
    assertThrows(IllegalStateException.class, () -> MinMaxPriorityQueue.isEvenLevel(1 << 31));
    assertThrows(
        IllegalStateException.class, () -> MinMaxPriorityQueue.isEvenLevel(Integer.MIN_VALUE));
  }

from typing import Annotated, Any

from fastapi import Depends, FastAPI

app = FastAPI()


fake_items_db = [{"item_name": "Foo"}, {"item_name": "Bar"}, {"item_name": "Baz"}]


class CommonQueryParams:
    def __init__(self, q: str | None = None, skip: int = 0, limit: int = 100):
        self.q = q
        self.skip = skip
        self.limit = limit


@app.get("/items/")

import model.DefaultFunctionalTestBucketProvider
import model.JsonBasedGradleSubprojectProvider
import promotion.PromotionProject
import util.UtilPerformanceProject
import util.UtilProject
import java.io.File

class GradleBuildToolRootProject(branch: VersionedSettingsBranch) : Project({
    val model = CIBuildModel(
        projectId = "Check",
        branch = branch,
        buildScanTags = listOf("Check"),

You import it and create an "instance" the same way you would with the class `FastAPI`:

```Python hl_lines="1  3" title="app/routers/users.py"
{!../../docs_src/bigger_applications/app/routers/users.py!}
```

### *Path operations* with `APIRouter`

And then you use it to declare your *path operations*.

Use it the same way you would use the `FastAPI` class:

```Python hl_lines="6  11  16" title="app/routers/users.py"

import okhttp3.internal.concurrent.TaskRunner
import okhttp3.internal.connection.Locks.withLock
import okhttp3.internal.connection.RoutePlanner.Plan
import okhttp3.internal.platform.Platform
import okhttp3.internal.toHostHeader

class RealRoutePlanner(
  private val taskRunner: TaskRunner,
  private val connectionPool: RealConnectionPool,
  private val readTimeoutMillis: Int,
  private val writeTimeoutMillis: Int,

 * override {@code putAll} as well, either providing your own implementation, or delegating to the
 * provided {@code standardPutAll} method.
 *
 * <p><b>{@code default} method warning:</b> This class does <i>not</i> forward calls to {@code
 * default} methods. Instead, it inherits their default implementations. When those implementations
 * invoke methods, they invoke methods on the {@code ForwardingMap}.
 *

    assertThrows(IllegalArgumentException.class, () -> Queues.newLinkedBlockingDeque(0));
    assertEquals(1, Queues.newLinkedBlockingDeque(1).remainingCapacity());
    assertEquals(11, Queues.newLinkedBlockingDeque(11).remainingCapacity());
  }

  public void testNewLinkedBlockingQueueCapacity() {
    assertThrows(IllegalArgumentException.class, () -> Queues.newLinkedBlockingQueue(0));

@ElementTypesAreNonnullByDefault
@SuppressWarnings("AvoidObjectArrays")
public final class ObjectArrays {

  private ObjectArrays() {}

  /**
   * Returns a new array of the given length with the specified component type.
   *
   * @param type the component type
   * @param length the length of the new array
   */
  @GwtIncompatible // Array.newInstance(Class, int)
  @SuppressWarnings("unchecked")

import mockwebserver3.MockWebServer
import okhttp3.testing.PlatformRule
import org.junit.jupiter.api.BeforeEach
import org.junit.jupiter.api.Test
import org.junit.jupiter.api.extension.RegisterExtension

class LoomTest {
  @JvmField
  @RegisterExtension
  val platform = PlatformRule()

  @JvmField
  @RegisterExtension
  val clientTestRule = OkHttpClientTestRule()

  private lateinit var server: MockWebServer

import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.CLASS;

import com.google.common.annotations.GwtCompatible;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;

/**