```json
{
  "message": "Hello World"
}
```

Разумеется, вы наверняка найдёте гораздо более полезные способы воспользоваться этим, чем просто форматирование JSON. 😉

## Класс ответа по умолчанию { #default-response-class }

При создании экземпляра класса **FastAPI** или `APIRouter` вы можете указать, какой класс ответа использовать по умолчанию.

Параметр, который это определяет, — `default_response_class`.

                break;
              case REPLACED:
                stats[2]++;
                break;
              case SIZE:
                stats[3]++;
                break;
              default:
                throw new IllegalStateException("No collected exceptions in GWT CacheBuilder.");
            }
          }
        };

    Cache<Integer, Integer> cache =
        CacheBuilder.newBuilder()

                 * are ignored if the POM file contains at least one <source> element
                 * for the corresponding scope and language. This rule exists because
                 * Maven provides default values for those elements which may conflict
                 * with user's configuration.
                 */
                if (!hasScript) {

      try {
        return input.readUTF();
      } catch (IOException e) {
        throw new IllegalStateException(e);
      }
    }
  }

  /** Returns a new {@link ByteArrayDataOutput} instance with a default size. */
  @J2ktIncompatible
  public static ByteArrayDataOutput newDataOutput() {
    return newDataOutput(new ByteArrayOutputStream());
  }

  /**

                    case SmbComTransaction.TRANS2_GET_DFS_REFERRAL:
                        break;
                    default:
                        service = "A:";
                    }
                    break;
                default:
                    service = "A:";
                }
            }

            final DfsReferral start = dr;
            SmbException se = null;

     */
    boolean isDirectory() throws CIFSException;

    /**
     * Tests to see if the file this <code>SmbResource</code> represents
     * exists and is not marked read-only. By default, resources are
     * considered to be read-only and therefore for <code>smb://</code>,
     * <code>smb://workgroup/</code>, and <code>smb://server/</code> resources
     * will be read-only.
     *

        @Test
        @DisplayName("Should handle source key with all zeros")
        void testSourceKeyAllZeros() {
            // Given
            byte[] zeroKey = new byte[SOURCE_KEY_SIZE]; // All zeros by default
            SrvCopychunk chunk = new SrvCopychunk(1, 2, 3);
            SrvCopychunkCopy copy = new SrvCopychunkCopy(zeroKey, chunk);
            byte[] buffer = new byte[100];

            // When

        <artifactId>plexus-utils</artifactId>
        <version>${plexusUtilsVersion}</version>
      </dependency>
      <dependency>
        <groupId>org.codehaus.plexus</groupId>
        <artifactId>plexus-container-default</artifactId>
        <version>${plexusVersion}</version>
      </dependency>
      <dependency>
        <groupId>org.codehaus.plexus</groupId>
        <artifactId>plexus-component-annotations</artifactId>

        response = new SrvCopyChunkCopyResponse();
    }

    @Nested
    @DisplayName("Constructor Tests")
    class ConstructorTests {

        @Test
        @DisplayName("Should create response with default values")
        void testConstructor() {
            SrvCopyChunkCopyResponse copyResponse = new SrvCopyChunkCopyResponse();
            assertNotNull(copyResponse);
        }

        @Test

    }

    // Concrete implementation for testing abstract class
    private static class TestSessionServicePacket extends SessionServicePacket {
        int trailerLength = 10; // Default trailer length for testing
        int trailerBytesRead = 0;

        @Override
        int writeTrailerWireFormat(byte[] dst, int dstIndex) {
            // Simple mock implementation