if i == -1 {
			return n
		}
		n++
		s = s[i+len(sep):]
	}
}

// Contains reports whether subslice is within b.
func Contains(b, subslice []byte) bool {
	return Index(b, subslice) != -1
}

// ContainsAny reports whether any of the UTF-8-encoded code points in chars are within b.
func ContainsAny(b []byte, chars string) bool {
	return IndexAny(b, chars) >= 0
}

#### Kiểm tra `openapi.json`

Nếu bạn tò mò về việc cấu trúc OpenAPI nhìn như thế nào thì FastAPI tự động sinh một JSON (schema) với các mô tả cho tất cả API của bạn.

        put(range, value);
        return;
      }

      Range<K> coalescedRange = coalescedRange(range, checkNotNull(value));
      // only coalesce ranges within the subRange
      put(coalescedRange.intersection(subRange), value);
    }

    @Override
    public void putAll(RangeMap<K, ? extends V> rangeMap) {
      if (rangeMap.asMapOfRanges().isEmpty()) {

  the Program.

3.3 Contributors may not remove or alter any copyright, patent,
trademark, attribution notices, disclaimers of warranty, or limitations
of liability ("notices") contained within the Program from any copy of
the Program which they Distribute, provided that Contributors may add
their own appropriate notices.

4. COMMERCIAL DISTRIBUTION

                if (logger.isDebugEnabled()) {
                    logger.debug("Interrupted.", e);
                }
            }
        }

        /**
         * Waits for the crawling thread to terminate within a specified time limit.
         * This method blocks until the thread completes or the timeout expires.
         *
         * @param mills maximum time to wait in milliseconds
         */

                    latch.countDown();
                }
            });
        }

        // Then
        assertTrue(latch.await(10, TimeUnit.SECONDS), "Concurrent test should complete within timeout");
        executor.shutdown();
        assertEquals(0, collisions.get(), "No nonce collisions should occur in concurrent generation");

         */
        public void setMessages(List<WitnessNotificationMessage> messages) {
            this.messages = messages;
        }
    }

    /**
     * Individual notification message within a notification response.
     */
    public static class WitnessNotificationMessage {

        /**
         * Creates a new witness notification message
         */
        public WitnessNotificationMessage() {

    any liability that these contractual assumptions directly impose on
    those licensors and authors.

  All other non-permissive additional terms are considered "further
restrictions" within the meaning of section 10.  If the Program as you
received it, or any part of it, contains a notice stating that it is
governed by this License along with a term that is a further

  // hashcode of 0x89abcdef. The imaginary `hash` value would then be the remaining top 25 bits,
  // 0x89abcd80. To this is added (or'd) the `next` value, which is an index within `entries`
  // (and therefore within `keys` and `values`) of another entry that has the same short hash
  // value. In our example, it would be another entry for a key whose short hash is also 0x6f.
  //

    }
  }

  /*
   * We've split testFuzzyCompare() into multiple tests so that our internal Android test runner has
   * a better chance of completing each within its per-test-method timeout.
   */

  public void testFuzzyCompare0() {
    runTestFuzzyCompare(0);
  }

  public void testFuzzyCompare1() {
    runTestFuzzyCompare(1);
  }