// do not require all metadata to be synchronized with the disk.
func Fdatasync(f *os.File) error {
	return syscall.Fdatasync(int(f.Fd()))
}

// FadviseDontNeed invalidates page-cache
func FadviseDontNeed(f *os.File) error {
	return unix.Fadvise(int(f.Fd()), 0, 0, unix.FADV_DONTNEED)

from fastapi import FastAPI
from fastapi.responses import PlainTextResponse

app = FastAPI()


@app.get("/", response_class=PlainTextResponse)
async def main():

     * throw on a regular basis here.
     *
     * @param host the hostname to resolve
     * @param tc the CIFS context
     * @return resolved name, null if not found
     */
    public synchronized NbtAddress getByName(final String host, final CIFSContext tc) {
        return getByName(new Name(tc.getConfig(), host, 0x20, null), tc);
    }

    synchronized NbtAddress getByName(final Name name, final CIFSContext tc) {

          public @Nullable Void call() throws Exception {
            // adds two nanoseconds to the ticker
            ticker.advance(1L);
            Thread.sleep(10);
            ticker.advance(1L);
            return null;
          }
        });

    assertEquals(numberOfThreads * 2, ticker.read());
  }

  @GwtIncompatible // concurrency

  public void testConcurrentAutoIncrementStep() throws Exception {

}

func (r CustomReplacer) Replace(name string) string {
	return r.f(name)
}

func TestCustomReplacer(t *testing.T) {
	ns := NamingStrategy{
		TablePrefix:   "public.",
		SingularTable: true,
		NameReplacer: CustomReplacer{
			func(name string) string {
				replaced := "REPLACED_" + strings.ToUpper(name)
				return strings.NewReplacer("CID", "_Cid").Replace(replaced)
			},
		},

                    || childDirectory == null
                    || childPathAdjustment == null
                    || !appendPath) {
                return parentUrl;
            }

            // append childPathAdjustment and childDirectory to parent url
            return appendPath(parentUrl, childDirectory.toString(), childPathAdjustment.toString());
        }

from fastapi import FastAPI, Form

app = FastAPI()


@app.post("/login/")
async def login(username: str = Form(), password: str = Form()):

    }

    @Override
    public InvertibleCryptographer providePrimaryInvertibleCryptographer() {
        return primaryInvertibleCryptographer;
    }

    @Override
    public OneWayCryptographer providePrimaryOneWayCryptographer() {
        return primaryOneWayCryptographer;
    }

    this.collectionGenerator = collectionGenerator;
  }

  @Override
  public TestSubjectGenerator<? extends Iterable<E>> getInnerGenerator() {
    return collectionGenerator;
  }

  @Override
  public Iterator<E> get() {
    return collectionGenerator.createTestSubject().iterator();
  }

  @Override
  Set<Integer> createUnfiltered(Iterable<Integer> contents) {
    return newHashSet(contents);
  }

  @Override
  Set<Integer> filter(Set<Integer> elements, Predicate<? super Integer> predicate) {
    return Sets.filter(elements, predicate);
  }