Here are some additional ideas that might be useful when working with Python types.

## Using `Union` or `Optional` { #using-union-or-optional }

If your code for some reason can't use `|`, for example if it's not in a type annotation but in something like `response_model=`, instead of using the vertical bar (`|`) you can use `Union` from `typing`.

For example, you could declare that something could be a `str` or `None`:

```python

## |:-------- ## | rootUser | rootUser | ## | rootPassword | rootPassword | ## ## All mentioned variables will be ignored in values file. ## .data.rootUser and .data.rootPassword are mandatory, ## others depend on enabled status of corresponding sections. existingSecret: "" ## Directory on the MinIO pof certsPath: "/etc/minio/certs/" configPathmc: "/etc/minio/mc/" ## Path where PV would be mounted on the MinIO Pod mountPath: "/export" ## Override the root directory which the minio server should serve...

## |:-------- ## | rootUser | rootUser | ## | rootPassword | rootPassword | ## ## All mentioned variables will be ignored in values file. ## .data.rootUser and .data.rootPassword are mandatory, ## others depend on enabled status of corresponding sections. existingSecret: "" ## Directory on the MinIO pof certsPath: "/etc/minio/certs/" configPathmc: "/etc/minio/mc/" ## Path where PV would be mounted on the MinIO Pod mountPath: "/export" ## Override the root directory which the minio server should serve...

import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.nio.charset.Charset;

/**
 * A destination to which bytes can be written, such as a file. Unlike an {@link OutputStream}, a
 * {@code ByteSink} is not an open, stateful stream that can be written to and closed. Instead, it
 * is an immutable <i>supplier</i> of {@code OutputStream} instances.
 *
 * <p>{@code ByteSink} provides two kinds of methods:
 *

### SIG Auth

    /** Logger adapter. */
    private final LoggerAdapter log;

    /**
     * Returns a {@link Logger}.
     *
     * @param clazz
     *            Class to be used as the logger category. Must not be {@literal null}.
     * @return {@link Logger}
     */
    public static synchronized Logger getLogger(final Class<?> clazz) {
        assertArgumentNotNull("clazz", clazz);

        if (!initialized) {

     * @return true if this map maps one or more keys to the specified value
     */
    @Override
    public boolean containsValue(final Object value) {
        return parent.containsValue(value);
    }

    /**
     * Returns the value to which the specified key is mapped.
     *
     * @param key the key whose associated value is to be returned

        // added to 'filtered' as they are whitelisted. When scanning B and D, they are not whitelisted, and since
        // transitive is false, their downstream dependencies will be added to 'filtered'. E is a downstream dependency
        // of A, B, C, and D, so when scanning B and D, E will be added again 'filtered'.
        //

  |
  | o add specification element to a field, this would be more a technical description of
  |   what is allowed in the field.
  |
  | o validators: there could be several levels of validation. Simple type validation could
  |   be done with a regex, but we need inter-field validation and rules which could be
  |   dealt with by something like drools.
  |
  | o i18n: would be good to be able to have names/descriptions/specifications

    segment = cache.segments[0];
    chain = null;
    for (int i = 0; i < length; i++) {
      Object key = new Object();
      // TODO(b/145386688): This access should be guarded by 'this.segment', which is not currently
      // held
      chain = segment.newEntry(key, cache.hash(key), chain);
      if (i == 0) {
        head = chain;
      }
    }
  }