final CountDownLatch hasConfirmedIsRunning = new CountDownLatch(1);

    /*
     * The main test thread tries to stop() the service shortly after
     * confirming that it is running. Meanwhile, the service itself is trying
     * to confirm that it is running. If the main thread's stop() call happens
     * before it has the chance, the test will fail. To avoid this, the main

   * fails and something failed during startup before service.start was called on all the services,
   * then awaitStopped would deadlock due to an IllegalStateException that was thrown when trying to
   * stop the timer(!).
   */
  public void testFailStart_stopOthers() throws TimeoutException {
    Service a = new FailStartService();
    Service b = new NoOpService();

Don't worry, with the way the code is structured, we'll make sure we use **a single SQLModel *session* per request** later, this is actually what the `check_same_thread` is trying to achieve.

### Create the Tables { #create-the-tables }

We then add a function that uses `SQLModel.metadata.create_all(engine)` to **create the tables** for all the *table models*.

	return err
}

// When numeric types are compared, type promotions could happen. If
// values do not have types (e.g. when reading from CSV), for
// comparison operations, automatic type conversion happens by trying
// to check if the value is a number (first an integer, then a float),
// and falling back to string.
func (v *Value) compareOp(op string, a *Value) (res bool, err error) {
	if !isValidComparisonOperator(op) {

    tensorflow::ImmediateExecutionTensorHandle* unwrapped_handle =
        tensorflow::unwrap(handles[i]);
    if (tensorflow::CustomDeviceTensorHandle::classof(unwrapped_handle)) {
      // One of the inputs we're trying to pack is on a custom device. We'll let
      // the first custom device we see handle all of the packing.
      auto* custom_device_handle =
          tensorflow::down_cast<tensorflow::CustomDeviceTensorHandle*>(

<div class="termy">

```console
$ python -m pip install --upgrade pip

---> 100%
```

</div>

/// tip

Sometimes, you might get a **`No module named pip`** error when trying to upgrade pip.

If this happens, install and upgrade pip using the command below:

<div class="termy">

```console
$ python -m ensurepip --upgrade

---> 100%
```

</div>

    return executor.submit(
        () -> {
          boolean createSymlink = false;
          while (!Thread.interrupted()) {
            try {
              // trying to switch between a real directory and a symlink (dir -> /a)
              if (Files.deleteIfExists(file)) {
                if (createSymlink) {
                  Files.createSymbolicLink(file, target);

            case 4:
                this.state = 6;
                throw new TransportException("Connection in error", this.te);
            case 5:
            case 6:
                log.debug("Trying to connect a disconnected transport");
                return false;
            default:
                final TransportException tex = new TransportException("Invalid state: " + st);
                throw tex;

    }

    /**
     * Constructs an SmbFile representing a file on an SMB network. The
     * {@code shareAccess} parameter controls what permissions other
     * clients have when trying to access the same file while this instance
     * is still open. This value is either {@code FILE_NO_SHARE} or any
     * combination of {@code FILE_SHARE_READ}, {@code FILE_SHARE_WRITE},

                    if (log.isTraceEnabled()) {
                        log.trace("Found at " + link);
                    }
                    break;
                }

                // walk up trying to find a match, do not go up to the root
                final int nextSep = link.lastIndexOf('\\');
                if (nextSep <= 0) {
                    if (log.isTraceEnabled()) {