}
            }
        }
        return null;
    }

    private boolean isSafelyCacheable(RepositorySystemSession session, Artifact artifact) {
        /*
         * The workspace/reactor is in flux so we better not assume definitive information for any of its
         * artifacts/projects.
         */

        WorkspaceReader workspace = session.getWorkspaceReader();
        if (workspace == null) {

  // Might also explore collocating all of [hash, next, predecessor, successor] fields of an
  // entry in a *single* long[], though that reduces the maximum size of the set by a factor of 2

  /**
   * Pointer to the predecessor of an entry in insertion order. ENDPOINT indicates a node is the
   * first node in insertion order; all values at indices ≥ {@link #size()} are UNSET.
   */

  // Might also explore collocating all of [hash, next, predecessor, successor] fields of an
  // entry in a *single* long[], though that reduces the maximum size of the set by a factor of 2

  /**
   * Pointer to the predecessor of an entry in insertion order. ENDPOINT indicates a node is the
   * first node in insertion order; all values at indices ≥ {@link #size()} are UNSET.
   */

    private static boolean isMacOS() {
        return System.getProperty("os.name").toLowerCase(Locale.ROOT).contains("mac");
    }

    private static boolean isAlpine() {
        return System.getProperty("java.vm.vendor").toLowerCase(Locale.ROOT).contains("alpine");
    }

    private static class ExecResult {
        private final String[] args;
        private final int code;
        private final String stdout;

    @Resource
    protected DynamicProperties systemProperties;

    private static final String[] bugReportLabels =
            { "file.separator", "file.encoding", "java.runtime.version", "java.vm.info", "java.vm.name", "java.vm.vendor",
                    "java.vm.version", "os.arch", "os.name", "os.version", "user.country", "user.language", "user.timezone" };

    // ===================================================================================

Up to now you have seen dependencies declared as functions.

But that's not the only way to declare dependencies (although it would probably be the more common).

The key factor is that a dependency should be a "callable".

A "**callable**" in Python is anything that Python can "call" like a function.

                String msg = str + " aggregator mojo is already being executed "
                        + "in this parallel build, those kind of mojos require exclusive access to "
                        + "reactor to prevent race conditions. This mojo execution will be blocked "
                        + "until the aggregator mojo is done.";
                warn(msg);
                acquiredAggregatorLock.lock();
            }

ion-S3-Sealed-Key":"IAAfAOM/MAL8V00qquP4jyl5Tsno+er9YUIsRTAuA==","X-Minio-Internal-Server-Side-Encryption-Seal-Algorithm":"DAREv2-HMAC-SHA256","content-type":"application/octet-stream"}},{"Bucket":"buck1","Name":"go_113/src/cmd/internal/obj/s390x/vector.go","UserDef":{"X-Minio-Internal-Server-Side-Encryption-Iv":"YrpZMseMHDgE6NFVKUoi=","X-Minio-Internal-Server-Side-Encryption-S3-Kms-Key-Id":"my-minio-key","X-Minio-Internal-Server-Side-Encryption-S3-Kms-Sealed-Key":"IAAfANLu7Rubj1UCqVGl/r3hGL4j/U...

   * factor, and concurrency settings.
   */
  public static <E> ConcurrentHashMultiset<E> create() {
    return create(new ConcurrentHashMap<>());
  }

  /**
   * Creates a new {@code ConcurrentHashMultiset} containing the specified elements, using the
   * default initial capacity, load factor, and concurrency settings.
   *

$ python main.py

Hello World from Python
```

</div>

/// tip | Dica

Você pode ler mais sobre isso em <a href="https://12factor.net/config" class="external-link" target="_blank">The Twelve-Factor App: Config</a>.

///

## Tipos e Validação { #types-and-validation }