new BinaryPredicate<Double, Double>() {
            @Override
            public boolean apply(@Nullable Double actual, @Nullable Double expected) {
              // Test for equality to allow non-finite values to match; otherwise, use the finite
              // test.
              return actual.equals(expected)
                  || FINITE_QUANTILE_CORRESPONDENCE.compare(actual, expected);
            }
          },

You can define a <abbr title="A regular expression, regex or regexp is a sequence of characters that define a search pattern for strings.">regular expression</abbr> `pattern` that the parameter should match:

{* ../../docs_src/query_params_str_validations/tutorial004_an_py310.py hl[11] *}

This specific regular expression pattern checks that the received parameter value:

Podemos **ler** um único herói:

{* ../../docs_src/sql_databases/tutorial002_an_py310.py ln[75:80] hl[77] *}

### Atualizar um Hero com `HeroUpdate`

Podemos **atualizar um hero**. Para isso, usamos uma operação HTTP `PATCH`.

e,f,g,h,i=c.replace(/[a-zA-Z]/gi,"").substring(0,1),j="^",k=c.split(i||null);if(a.each(k,function(a,b){j+=(a>0?"\\"+i:"")+"(\\d{"+b.length+"})"}),j+="$",d){var l=[];a.each(b.split(i),function(a,b){1===b.length&&(b="0"+b),l.push(b)}),b=l.join(i)}if(e=b.match(new RegExp(j)),null===e)return!1;var m=function(b,c,d){for(var e=0;e<c.length;e++)if(c[e].substring(0,1)===b)return a.formUtils.parseDateInt(d[e+1]);return-1};return g=m("m",k,e),f=m("d",k,e),h=m("y",k,e),!(2===g&&f>28&&(h%4!==0||h%100===0&&h%400!...

        float boost = -1.0f;

        try {
            matchAllQueryCommand.execute(context, query, boost);
            fail("Should throw IllegalArgumentException for negative boost");
        } catch (IllegalArgumentException e) {
            // Expected exception
            assertTrue(e.getMessage().contains("negative [boost] are not allowed"));
        }
    }

  }

  private static void testEncodedLengthFails(String invalidString, int invalidCodePointIndex) {
    try {
      Utf8.encodedLength(invalidString);
      fail();
    } catch (IllegalArgumentException expected) {
      assertThat(expected)
          .hasMessageThat()
          .isEqualTo("Unpaired surrogate at index " + invalidCodePointIndex);
    }
  }

                        // Try creating resources
                        context.get("smb://server" + index + "/share/file" + j + ".txt");
                    }
                    results[index] = true;
                } catch (Exception e) {
                    logger.error("Thread {} failed", index, e);
                    results[index] = false;
                }
            });
            threads[i].start();
        }

This way, if any part of Starlette's internal code, or a Starlette extension or plug-in, raises a Starlette `HTTPException`, your handler will be able to catch and handle it.

In this example, to be able to have both `HTTPException`s in the same code, Starlette's exceptions is renamed to `StarletteHTTPException`:

```Python

                if (ctx != null) {
                    try {
                        ctx.decode(buffer, ncpos, dataLen);
                        contexts[i] = ctx;
                    } catch (Exception e) {
                        throw new SMBProtocolDecodingException(
                                "Failed to decode negotiate context at position " + i + ": " + e.getMessage(), e);
                    }

            // Verify source key is copied correctly
            for (int i = 0; i < SOURCE_KEY_SIZE; i++) {
                assertEquals(sourceKey[i], buffer[startIndex + i], "Source key byte at position " + i + " doesn't match");
            }
        }

        @Test
        @DisplayName("Should encode chunk count correctly")
        void testEncodeChunkCount() {
            // Given