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The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

    ImmutableSet.Builder<Object> builder = ImmutableSet.builderWithExpectedSize(6);
    builder.add(0);
    ImmutableSet<Object> unused = builder.build();
    ImmutableSet<Object> subject = builder.add(1).add(2).add(3).build();
    assertFalse(subject.contains(4));
  }

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Recipient a non-exclusive, worldwide, royalty-free copyright license to reproduce,
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      worldwide, non-exclusive, no-charge, royalty-free, irrevocable

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///

```Python hl_lines="116-131"
{!> ../../docs_src/security/tutorial004.py!}
```

////

### Technical details about the JWT "subject" `sub`

The JWT specification says that there's a key `sub`, with the subject of the token.

It's optional to use it, but that's where you would put the user's identification, so we are using it here.

        () -> collection.removeAll(MinimalCollection.of(e0())));
    expectUnchanged();
    assertTrue(collection.contains(e0()));
  }

  /*
   * AbstractCollection fails the removeAll(null) test when the subject
   * collection is empty, but we'd still like to test removeAll(null) when we
   * can. We split the test into empty and non-empty cases. This allows us to
   * suppress only the former.
   */

```
KEY:
notify_nats[:name]  publish bucket notifications to NATS endpoints

ARGS:
address*                          (address)   NATS server address e.g. '0.0.0.0:4222'
subject*                          (string)    NATS subscription subject
username                          (string)    NATS username
password                          (string)    NATS password
token                             (string)    NATS token