appendHex(buf, i);
        return new String(buf);
    }

    /**
     * Appends the hexadecimal string representation of a number to the given StringBuilder.
     *
     * @param buf
     *            the StringBuilder to append to
     * @param i
     *            the number to convert
     */
    public static void appendHex(final StringBuilder buf, final byte i) {

    public static final int MAX_BUFFER_SIZE = 1000;

    /** List storing recent lines from the input stream */
    private final List<String> list = new LinkedList<>();

    /** Maximum number of lines to keep in the buffer */
    private final int bufferSize;

    /** Callback function to process each line as it's read */
    private final Consumer<String> outputCallback;

    /**

     */
    @Size(max = 1000)
    public String q;

    /**
     * The sort parameter for search results.
     */
    @Size(max = 1000)
    public String sort;

    /**
     * The number of search results to return per page.
     */
    @ValidateTypeFailure
    public Integer num;

    /**
     * Array of language codes to filter search results.
     */
    public String[] lang;

    /**

        this.maxVersion = maxVersion;
    }

    /**
     * Get the number of send credits requested
     *
     * @return credits requested
     */
    public int getCreditsRequested() {
        return creditsRequested;
    }

    /**
     * Set the number of send credits requested
     *
     * @param creditsRequested credits to request
     */

  public static MultimapBuilderWithKeys<@Nullable Object> hashKeys() {
    return hashKeys(DEFAULT_EXPECTED_KEYS);
  }

  /**
   * Uses a hash table to map keys to value collections, initialized to expect the specified number
   * of keys.
   *
   * @throws IllegalArgumentException if {@code expectedKeys < 0}
   */
  public static MultimapBuilderWithKeys<@Nullable Object> hashKeys(int expectedKeys) {

  public static MultimapBuilderWithKeys<@Nullable Object> hashKeys() {
    return hashKeys(DEFAULT_EXPECTED_KEYS);
  }

  /**
   * Uses a hash table to map keys to value collections, initialized to expect the specified number
   * of keys.
   *
   * @throws IllegalArgumentException if {@code expectedKeys < 0}
   */
  public static MultimapBuilderWithKeys<@Nullable Object> hashKeys(int expectedKeys) {

     * @return The converted {@link Boolean}
     */
    public static Boolean toBoolean(final Object o) {
        return switch (o) {
        case null -> null;
        case Boolean b -> b;
        case Number n -> n.intValue() != 0;
        case String s -> switch (s.toLowerCase()) {
        case "true" -> Boolean.TRUE;
        case "false", "0" -> Boolean.FALSE;
        default -> Boolean.TRUE;
        };

        if (removed != null) {
            log.debug("Mock unregistered witness: {}", registrationId);
            return true;
        }
        return false;
    }

    /**
     * Get the number of active registrations
     *
     * @return the registration count
     */
    public int getRegistrationCount() {
        return registrations.size();
    }

    /**

        assertEquals(incremental, artifactVersion.getIncrementalVersion(), parsed + "check incremental version");
        assertEquals(buildnumber, artifactVersion.getBuildNumber(), parsed + "check build number");
        assertEquals(qualifier, artifactVersion.getQualifier(), parsed + "check qualifier");
        assertEquals(version, artifactVersion.toString(), "check " + version + " string value");
    }

    @Test

Mostrarei alguns exemplos concretos nos próximos capítulos.

---

Os próximos conceitos a serem considerados são todos sobre o programa que executa sua API real (por exemplo, Uvicorn).

## Programa e Processo

Falaremos muito sobre o "**processo**" em execução, então é útil ter clareza sobre o que ele significa e qual é a diferença com a palavra "**programa**".

### O que é um Programa