# `APIRouter` class

Here's the reference information for the `APIRouter` class, with all its parameters, attributes and methods.

You can import the `APIRouter` class directly from `fastapi`:

```python
from fastapi import APIRouter
```

::: fastapi.APIRouter
    options:
        members:
            - websocket
            - include_router
            - get
            - put
            - post
            - delete

 * [Kotlin Multiplatform Benefits](https://kotlinlang.org/docs/reference/multiplatform.html)
 * [Share code on all platforms](https://kotlinlang.org/docs/reference/mpp-share-on-platforms.html#share-code-on-all-platforms)
 * [Share code on similar platforms](https://kotlinlang.org/docs/reference/mpp-share-on-platforms.html#share-code-on-similar-platforms)

## Editing Kotlin

import org.jetbrains.kotlin.fir.psi
import org.jetbrains.kotlin.fir.references.FirNamedReference
import org.jetbrains.kotlin.fir.references.FirResolvedNamedReference
import org.jetbrains.kotlin.fir.references.toResolvedPropertySymbol
import org.jetbrains.kotlin.fir.references.toResolvedVariableSymbol
import org.jetbrains.kotlin.fir.symbols.FirBasedSymbol

 * NetworkBuilder}.
 *
 * <p>This class maintains a map of nodes to {@link NetworkConnections}. This class also maintains a
 * map of edges to reference nodes. The reference node is defined to be the edge's source node on
 * directed graphs, and an arbitrary endpoint of the edge on undirected graphs.
 *

        map.put(keyOne, valueOne);
        ReferenceEntry<Object, Object> entry = segment.getEntry(keyOne, hashOne);

        @SuppressWarnings("unchecked")
        Reference<Object> reference = (Reference<Object>) entry;
        reference.enqueue();

        map.put(keyTwo, valueTwo);
        assertFalse(map.containsKey(keyOne));
        assertFalse(map.containsValue(valueOne));

        map.put(keyOne, valueOne);
        ReferenceEntry<Object, Object> entry = segment.getEntry(keyOne, hashOne);

        @SuppressWarnings("unchecked")
        Reference<Object> reference = (Reference<Object>) entry;
        reference.enqueue();

        map.put(keyTwo, valueTwo);
        assertFalse(map.containsKey(keyOne));
        assertFalse(map.containsValue(valueOne));

# `FastAPI` class

Here's the reference information for the `FastAPI` class, with all its parameters, attributes and methods.

You can import the `FastAPI` class directly from `fastapi`:

```python
from fastapi import FastAPI
```

::: fastapi.FastAPI
    options:
        members:
            - openapi_version
            - webhooks
            - state
            - dependency_overrides
            - openapi

  ): Int {
    connection.lock.assertHeld()

    val references = connection.calls
    var i = 0
    while (i < references.size) {
      val reference = references[i]

      if (reference.get() != null) {
        i++
        continue
      }

      // We've discovered a leaked call. This is an application bug.
      val callReference = reference as CallReference
      val message =

      return get();
    }
  }

  /** References a strong value. */
  static class StrongValueReference<K, V> implements ValueReference<K, V> {
    final V referent;

    StrongValueReference(V referent) {
      this.referent = referent;
    }

    @Override
    public V get() {
      return referent;
    }

    @Override
    public int getWeight() {

            Errors.NO_CONSTRUCTOR,
            Errors.OVERLOAD_RESOLUTION_AMBIGUITY,
            Errors.NONE_APPLICABLE,
            Errors.CANNOT_COMPLETE_RESOLVE,
            Errors.UNRESOLVED_REFERENCE_WRONG_RECEIVER,
            Errors.CALLABLE_REFERENCE_RESOLUTION_AMBIGUITY,
            Errors.TYPE_PARAMETER_AS_REIFIED,
            Errors.DEFINITELY_NON_NULLABLE_AS_REIFIED,
            Errors.REIFIED_TYPE_FORBIDDEN_SUBSTITUTION,