import org.apache.maven.api.model.ModelBase;

/**
 * <p>A <dfn>remote repository</dfn> is a central or distributed location
 * from which Maven can download project dependencies, plugins, and other
 * build artifacts. When Maven cannot find an artifact in the local
 * repository, it attempts to retrieve it from one or more remote
 * repositories.</p>
 *
 * <p>There are several types of remote repositories:</p><ul>

    @Override
    public boolean isResolved() {
        return getFile() != null;
    }

    @Override
    public void setFile(File file) {
        throw new UnsupportedOperationException("transformed artifact file cannot be set");
    }

    @Override
    public synchronized File getFile() {
        try {
            String state = mayUpdate();
            if (state == null) {
                return null;
            }

            DefaultRepositorySystemSession session = new DefaultRepositorySystemSession(h -> false); // no close handle

            // for technical reasons we cannot throw here, even if delegate does cancel transfer
            listener.transferInitiated(event(session, resource, TransferEvent.EventType.INITIATED));

            String artifactId,
            String classifier,
            String extension,
            String version,
            String message) {
        this.artifact = Objects.requireNonNull(artifact, "artifact cannot be null");
        this.groupId = (groupId != null && !groupId.isEmpty()) ? groupId : null;
        this.artifactId = (artifactId != null && !artifactId.isEmpty()) ? artifactId : null;

```python
from typing import Optional


def say_hi(name: Optional[str]):
    print(f"Hey {name}!")
```

The parameter `name` is defined as `Optional[str]`, but it is **not optional**, you cannot call the function without the parameter:

```Python
say_hi()  # Oh, no, this throws an error! 😱
```

    checkNotClosed();
    target.append(charSeq, start, end);
    return this;
  }

  private void checkNotClosed() throws IOException {
    if (closed) {
      throw new IOException("Cannot write to a closed writer.");
    }
  }

					subName := field.Name
					const key = "COMPOSITE"
					if composite, found := settings[key]; found {
						if len(composite) == 0 || composite == key {
							err = fmt.Errorf(
								"the composite tag of %s.%s cannot be empty",
								field.Schema.Name,
								field.Name)
							return
						}
						subName = composite
					}
					name = field.Schema.namer.IndexName(
						field.Schema.Table, subName)
				}

	// termWidth is set to a default one to use when we are
	// not able to calculate terminal width via OS syscalls
	termWidth := 25
	if width, err := pb.GetTerminalWidth(); err == nil {
		termWidth = width
	}

	// Box cannot be printed if terminal width is small than maxContentWidth
	if maxContentWidth > termWidth {
		return "\n" + line1InColor + "\n" + line2InColor + "\n\n"
	}

	topLeftChar := "┏"
	topRightChar := "┓"

      )

    parts.nextPart()!!
    val partMno = parts.nextPart()!!
    assertThat(partMno.body.readUtf8()).isEqualTo("mnop")

    assertThat(parts.nextPart()).isNull()
  }

  @Test fun `cannot read part after calling nextPart`() {
    val multipart =
      """
      |--simple boundary
      |
      |abcd
      |efgh
      |ijkl
      |--simple boundary
      |
      |mnop

    /**
     * Creates a new source backed by the specified URL.
     *
     * @param url The file, must not be {@code null}.
     */
    public UrlSource(URL url) {
        this.url = Objects.requireNonNull(url, "url cannot be null");
        this.hashCode = Objects.hashCode(url);
    }

    @Override
    public InputStream getInputStream() throws IOException {
        return url.openStream();
    }

    @Override