```

/// tip

The second argument to <a href="https://docs.python.org/3.8/library/os.html#os.getenv" class="external-link" target="_blank">`os.getenv()`</a> is the default value to return.

If not provided, it's `None` by default, here we provide `"World"` as the default value to use.

///

Then you could call that Python program:

//// tab | Linux, macOS, Windows Bash

<div class="termy">

```console

            } else {
                final String[] values = path.replaceAll("/+", "/").replaceFirst("/$", "").split("/");
                if (values.length == 1) {
                    parent = "/";
                    name = null;
                } else if (values.length == 2) {
                    parent = "/";
                    name = values[1];
                } else {

        String actual;
        String value;

        value = "hoge.txt";
        expected = "hoge.txt";
        actual = extractor.getFileName(value);
        assertEquals(expected, actual);

        value = "/hoge.txt";
        expected = "hoge.txt";
        actual = extractor.getFileName(value);
        assertEquals(expected, actual);

        value = "fuga/hoge.txt";
        expected = "hoge.txt";

@GwtIncompatible
abstract class AbstractRangeSet<C extends Comparable> implements RangeSet<C> {
  AbstractRangeSet() {}

  @Override
  public boolean contains(C value) {
    return rangeContaining(value) != null;
  }

  @Override
  public abstract @Nullable Range<C> rangeContaining(C value);

  @Override
  public boolean isEmpty() {
    return asRanges().isEmpty();
  }

  @Override
  public void add(Range<C> range) {

  for prefix in whitelist_prefix:
    if var_name.startswith(prefix):
      return True
  return False


def main(parsed_args: argparse.Namespace):
  converted_vars = {}

  for var, value in os.environ.items():
    if not value or not should_convert(var,
                                       parsed_args.blacklist,
                                       parsed_args.whitelist_prefix):
      continue

                final AccessResultImpl<Long> value = entry.getValue();
                urlQueue.setSessionId(sessionId);
                urlQueue.setMethod(value.getMethod());
                urlQueue.setUrl(value.getUrl());
                urlQueue.setParentUrl(value.getParentUrl());
                urlQueue.setDepth(0);
                urlQueue.setLastModified(value.getLastModified());

        assertEquals(option1.getFieldNaming(), option2.getFieldNaming());
    }

    public void test_allMethodsReturnExpectedValues() {
        // Comprehensive test to verify all methods return expected values
        FessJsonResourceProvider testProvider = new FessJsonResourceProvider();

        // Verify nulls suppression is enabled
        assertTrue("Nulls should be suppressed", testProvider.isNullsSuppressed());

    /**
     * Returns a mapping of artifact coordinates to their corresponding resolution results.
     *
     * @return A {@link Map} where keys are {@link ArtifactCoordinates} and values are {@link ResultItem} instances.
     */
    @Nonnull
    Map<? extends ArtifactCoordinates, ResultItem> getResults();

    /**
     * Retrieves the resolution result for a specific set of artifact coordinates.

                builder.field("value", 123);
                builder.field("enabled", true);
                builder.startArray("items");
                builder.value("item1");
                builder.value("item2");
                builder.endArray();
                builder.startObject("nested");
                builder.field("inner", "value");
                builder.endObject();

            assertFalse(UniAddress.isDotQuadIP(input));
        }

        @Test
        void shouldReturnTrueForInvalidOctetValues() {
            // isDotQuadIP does not validate octet values, only checks format
            assertTrue(UniAddress.isDotQuadIP("192.168.1.256"));
            assertTrue(UniAddress.isDotQuadIP("999.999.999.999"));
        }

        @Test