## `Depends()`

Dependencies are handled mainly with the special function `Depends()` that takes a callable.

Here is the reference for it and its parameters.

You can import it directly from `fastapi`:

```python
from fastapi import Depends
```

::: fastapi.Depends

## `Security()`

dependencies {
    baseline("gradle:gradle:${compatibilityBaselineVersion}@zip")

    // This transform takes the Gradle zip distribution,
    // and unzips the Gradle jar files that it contains in a directory
    registerTransform(ExplodeZipAndFindJars) {
        from.attribute(ARTIFACT_TYPE, 'zip')
        to.attribute(ARTIFACT_TYPE, 'gradle-libs-dir')
    }
    registerTransform(FindGradleClasspath) {

    private NdrBuffer mockNdrBuffer;

    @Mock
    private NdrBuffer mockDeferredBuffer;

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
        // Set the deferred field directly since it's a public field, not a method
        mockNdrBuffer.deferred = mockDeferredBuffer;
        lenient().when(mockNdrBuffer.derive(anyInt())).thenReturn(mockDeferredBuffer);

                throw new MissingProjectException("The goal you specified requires a project to execute"
                        + " but there is no POM in this directory (" + session.getTopDirectory() + ")."
                        + " Please verify you invoked Maven from the correct directory.");
            }

            List<TaskSegment> taskSegments = calculateTaskSegments(session);
            if (taskSegments.isEmpty()) {

try:
    import orjson
except ImportError:  # pragma: nocover
    orjson = None  # type: ignore


@deprecated(
    "UJSONResponse is deprecated, FastAPI now serializes data directly to JSON "
    "bytes via Pydantic when a return type or response model is set, which is "
    "faster and doesn't need a custom response class. Read more in the FastAPI "

     * that edge to {@code value} (overwriting the existing value, if any).
     *
     * <p>If the graph is directed, the resultant edge will be directed; otherwise, it will be
     * undirected.
     *
     * <p>If this graph is directed, {@code endpoints} must be ordered.
     *
     * <p>Values do not have to be unique. However, values must be non-null.
     *

    successorIterator = graph.successors(node).iterator();
    return true;
  }

  /**
   * If the graph is directed, each ordered [source, target] pair will be visited once if there is
   * an edge connecting them.
   */
  private static final class Directed<N> extends EndpointPairIterator<N> {
    private Directed(BaseGraph<N> graph) {
      super(graph);
    }

    @Override

                throw new MissingProjectException("The goal you specified requires a project to execute"
                        + " but there is no POM in this directory (" + session.getExecutionRootDirectory() + ")."
                        + " Please verify you invoked Maven from the correct directory.");
            }

            List<TaskSegment> taskSegments = lifecycleTaskSegmentCalculator.calculateTaskSegments(session);

  /** Creates a new instance with the specified edge directionality. */
  private NetworkBuilder(boolean directed) {
    super(directed);
  }

  /** Returns a {@link NetworkBuilder} for building directed networks. */
  public static NetworkBuilder<Object, Object> directed() {
    return new NetworkBuilder<>(true);
  }

  /** Returns a {@link NetworkBuilder} for building undirected networks. */

     * Build sources are used for POM files of projects being built by Maven
     * in the filesystem and support resolving related POMs.
     *
     * @param path the path to the POM file or project directory
     * @return a new ModelSource instance configured as a build source
     * @throws NullPointerException if path is null
     */
    @Nonnull
    public static ModelSource buildSource(@Nonnull Path path) {