} catch (IOException e) {
            log.error("Failed to remove persisted handle file: " + handleFile, e);
        }
    }

    private void loadPersistedHandles() {
        if (!Files.exists(stateDirectory)) {
            return;
        }

        try (DirectoryStream<Path> stream = Files.newDirectoryStream(stateDirectory, "*.handle")) {
            for (Path handleFile : stream) {

        leaseManager.handleLeaseBreakWithTimeout(key, newState, 1);

        LeaseEntry entry = leaseManager.getLease(key);
        if (entry != null) {
            // If entry still exists, it should have the new state
            assertEquals(newState, entry.getLeaseState());
        }
        // If entry doesn't exist, it was cleaned up due to timeout
    }

    @Test

errors.app.db.already.deleted = Mogło zostać już usunięte przez inny proces. Spróbuj ponownie.
errors.app.db.already.updated = Mogło zostać już zaktualizowane przez inny proces. Spróbuj ponownie.
errors.app.db.already.exists = Dane już istnieją. Spróbuj ponownie.
errors.app.double.submit.request = To żądanie mogło zostać już przetworzone. Spróbuj ponownie.
# _/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/

        if (parent != null) {
            String childName = child.getArtifactId();

            /*
             * This logic (using filesystem, against wanted independence from the user environment) exists only for the
             * sake of backward-compat with 2.x (MNG-5000). In general, it is wrong to
             * base URL inheritance on the module directory names as this information is unavailable for POMs in the

```console
// Create an env var MY_NAME in line for this program call
$ MY_NAME="Wade Wilson" python main.py

// Now it can read the environment variable

Hello Wade Wilson from Python

// The env var no longer exists afterwards
$ python main.py

Hello World from Python
```

</div>

/// tip

//
// Some types of a queries are not valid. For example, an aggregation
// function combined with a row function is meaningless ("AVG(s.Age) +
// s.Salary"). Analysis determines if such a scenario exists so an
// error can be returned.

var (
	// Fatal error for query processing.
	errNestedAggregation      = errors.New("Cannot nest aggregations")
	errFunctionNotImplemented = errors.New("Function is not yet implemented")

		tx := m.DB.Session(&gorm.Session{})
		if err := m.RunWithValue(values[i], func(stmt *gorm.Statement) error {
			return tx.Exec("DROP TABLE IF EXISTS ?", m.CurrentTable(stmt)).Error
		}); err != nil {
			return err
		}
	}
	return nil
}

// HasTable returns table exists or not for value, value could be a struct or string
func (m Migrator) HasTable(value interface{}) bool {
	var count int64

        if ((flags & SmbConstants.O_CREAT) == SmbConstants.O_CREAT) {
            // create it if necessary
            if ((flags & SmbConstants.O_EXCL) == SmbConstants.O_EXCL) {
                // fail if already exists
                this.createDisposition = FILE_CREATE;
            } else {
                this.createDisposition = FILE_OPEN_IF;
            }
        } else {
            this.createDisposition = FILE_OPEN;

    return mapEntry(key, value);
  }

  @Override
  protected void expectContents(Collection<Entry<K, V>> expected) {
    // TODO: move this to invariant checks once the appropriate hook exists?
    super.expectContents(expected);
    for (Entry<K, V> entry : expected) {
      assertEquals(
          "Wrong value for key " + entry.getKey(), entry.getValue(), getMap().get(entry.getKey()));
    }
  }

These types that have internal types are called "**generic**" types. And it's possible to declare them, even with their internal types.

To declare those types and the internal types, you can use the standard Python module `typing`. It exists specifically to support these type hints.

#### Newer versions of Python { #newer-versions-of-python }