assertEquals(1, project.getSourceRoots().size());

        // Try to remove a different directory
        project.removeSourceRoot(ProjectScope.MAIN, Language.JAVA_FAMILY, "src/test/java");

        assertEquals(1, project.getSourceRoots().size());

        // Try to remove a different scope
        project.removeSourceRoot(ProjectScope.TEST, Language.JAVA_FAMILY, "src/main/java");

Em sua rota WebSocket você pode esperar (`await`) por mensagens e enviar mensagens.

{* ../../docs_src/websockets/tutorial001_py39.py hl[48:52] *}

Você pode receber e enviar dados binários, de texto e JSON.

## Tente { #try-it }

Se seu arquivo for nomeado `main.py`, execute sua aplicação com:

<div class="termy">

```console
$ fastapi dev main.py

    }

    public String getRoleHint() {
        return roleHint;
    }

    /**
     * Creates a shallow copy of this requirement.
     */
    @Override
    public Requirement clone() {
        try {
            return (Requirement) super.clone();
        } catch (CloneNotSupportedException e) {
            throw new UnsupportedOperationException(e);
        }
    }

	return err.message
}

func errParquetParsingError(err error) *s3Error {
	return &s3Error{
		code:       "ParquetParsingError",
		message:    "Error parsing Parquet file. Please check the file and try again.",
		statusCode: 400,
		cause:      err,
	}

/// tip | Consejo

Puedes usar funciones `async` o regulares.

**FastAPI** hará lo correcto con cada una, igual que con dependencias normales.

///

## Una dependencia con `yield` y `try` { #a-dependency-with-yield-and-try }

Si usas un bloque `try` en una dependencia con `yield`, recibirás cualquier excepción que se haya lanzado al usar la dependencia.

    expectUnchanged();
  }

  @CollectionFeature.Require(absent = SUPPORTS_ADD)
  public void testAddAll_unsupportedNothing() {
    try {
      assertFalse(
          "addAll(nothing) should return false or throw", collection.addAll(emptyCollection()));
    } catch (UnsupportedOperationException tolerated) {
    }
    expectUnchanged();
  }

    if (iterator == null) {
      // TODO: throw something else? Do we worry that people's code and tests
      // might be relying on this particular type of exception?
      throw new IllegalStateException();
    }
    try {
      return iterator;
    } finally {
      iterator = null;
    }
  }

            for (MavenProject project : projects) {
                ClassLoader tccl = Thread.currentThread().getContextClassLoader();
                MavenProject currentProject = session.getCurrentProject();
                try {
                    BuilderCommon.attachToThread(project); // Not totally sure if this is needed for anything
                    session.setCurrentProject(project);

    // DefaultProjectBuilder
    public Artifact createDependencyArtifact(Dependency d) {
        if (d.getVersion() == null) {
            return null;
        }

        VersionRange versionRange;
        try {
            versionRange = VersionRange.createFromVersionSpec(d.getVersion());
        } catch (InvalidVersionSpecificationException e) {
            return null;
        }

    assertFalse(range.hasLowerBound());
    try {
      range.lowerEndpoint();
      fail();
    } catch (IllegalStateException expected) {
    }
    try {
      range.lowerBoundType();
      fail();
    } catch (IllegalStateException expected) {
    }
  }

  private static void assertUnboundedAbove(Range<Integer> range) {
    assertFalse(range.hasUpperBound());
    try {
      range.upperEndpoint();