throw new SmbException(fieldName + " contains null bytes");
        }

        // Check for control characters
        for (int i = 0; i < str.length(); i++) {
            char c = str.charAt(i);
            if (c < 0x20 && c != '\t' && c != '\r' && c != '\n') {
                failedValidations.incrementAndGet();
                log.warn("{} contains control characters", fieldName);

  private static final ImmutableList<String> ILL_FORMED_STRINGS;

  static {
    ImmutableList.Builder<String> builder = ImmutableList.builder();
    char[] surrogates = {
      MAX_LOW_SURROGATE, MAX_HIGH_SURROGATE, MIN_LOW_SURROGATE, MIN_HIGH_SURROGATE,
    };
    for (char surrogate : surrogates) {
      builder.add(newString(surrogate));
      builder.add(newString(surrogate, 'n'));
      builder.add(newString('n', surrogate));

                String server = authorityServerName;
                final int dot = server.indexOf('.');
                if (dot > 0 && !Character.isDigit(server.charAt(0))) {
                    server = server.substring(0, dot);
                }
                try (LsaPolicyHandle policyHandle = new LsaPolicyHandle(handle, "\\\\" + server, 0x00000800)) {

Vamos criar uma **dependência** do FastAPI com `yield` que fornecerá uma nova `Session` para cada requisição. Isso é o que garante que usamos uma única sessão por requisição. 🤓

Então, criamos uma dependência `Annotated` chamada `SessionDep` para simplificar o restante do código que usará essa dependência.

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[25:30]  hl[25:27,30] *}

      new Function<@Nullable String, @Nullable Character>() {
        @Override
        public @Nullable Character apply(@Nullable String input) {
          return input == null ? null : input.charAt(0);
        }
      };

  abstract static class ColumnMapTests extends MapMapTests {
    ColumnMapTests(
        boolean allowsNullValues,
        boolean supportsRemove,
        boolean supportsClear,

      new Function<@Nullable String, @Nullable Character>() {
        @Override
        public @Nullable Character apply(@Nullable String input) {
          return input == null ? null : input.charAt(0);
        }
      };

  abstract static class ColumnMapTests extends MapMapTests {
    ColumnMapTests(
        boolean allowsNullValues,
        boolean supportsRemove,
        boolean supportsClear,

    for (String edge : edges) {
      checkArgument(
          edge.length() == 2, "Expecting each edge to consist of 2 characters but got %s", edge);
      char node1 = edge.charAt(0);
      char node2 = edge.charAt(1);
      graphMapBuilder.put(node1, node2);
      if (!directed) {
        graphMapBuilder.put(node2, node1);
      }
    }

        }
        return Encdec.dec_uint16be(this.tmp, 0) & 0xFFFF;
    }

    @Override
    public final char readChar() throws SmbException {
        if (read(this.tmp, 0, 2) < 0) {
            throw new SmbEndOfFileException();
        }
        return (char) Encdec.dec_uint16be(this.tmp, 0);
    }

    @Override
    public final int readInt() throws SmbException {

     * @throws XmlPullParserException XmlPullParserException if
     * any.
     * @return char
     */
    private char getCharacterValue(String s, String attribute, XmlPullParser parser) throws XmlPullParserException {
        if (s != null) {
            return s.charAt(0);
        }
        return 0;
    } // -- char getCharacterValue( String, String, XmlPullParser )

    /**
     * Method getDateValue.
     *

   *
   * <ul>
   *   <li>use {@link StringReader} instead of {@link CharSequenceReader}. It is faster since it can
   *       use {@link String#getChars(int, int, char[], int)} instead of copying characters one by
   *       one with {@link CharSequence#charAt(int)}.
   *   <li>use {@link Appendable#append(CharSequence)} in {@link #copyTo(Appendable)} and {@link