You can use [`bump-pydantic`](https://github.com/pydantic/bump-pydantic) from the same Pydantic team.

This tool will help you to automatically change most of the code that needs to be changed.

After this, you can run the tests and check if everything works. If it does, you are done. 😎

## Pydantic v1 in v2 { #pydantic-v1-in-v2 }

  int last_num_graph_nodes;

  // If true, TF_SessionRun and similar methods will call
  // ExtendSessionGraphHelper before running the graph (this is the default
  // public behavior). Can be set to false if the caller needs to call
  // ExtendSessionGraphHelper manually.
  std::atomic<bool> extend_before_run;
};

struct TF_ImportGraphDefOptions {
  tensorflow::ImportGraphDefOptions opts;

setattr(_current_module, "metrics", _metrics)
setattr(_current_module, "optimizers", _optimizers)
setattr(_current_module, "initializers", _initializers)


# Do an eager load for Keras' code so that any function/method that needs to
# happen at load time will trigger, eg registration of optimizers in the
# SavedModel registry.
# See b/196254385 for more details.
try:
  if _tf_uses_legacy_keras:

    public T get() {
      // Another variant of Double Checked Locking.
      //
      // We use two volatile reads. We could reduce this to one by
      // putting our fields into a holder class, but (at least on x86)
      // the extra memory consumption and indirection are more
      // expensive than the extra volatile reads.
      long nanos = expirationNanos;
      long now = System.nanoTime();
      if (nanos == 0 || now - nanos >= 0) {

      // call to addListener() will callback to setOneValue(), transitively call our cleanup
      // listener, and set this.futures to null.
      // This is not actually a problem, since the foreach only needs this.futures to be non-null
      // at the beginning of the loop.
      int i = 0;
      for (ListenableFuture<? extends InputT> future : futures) {
        int index = i++;
        if (future.isDone()) {

        setField(cmd, "locks", new LockingAndXRange[0]);
        setField(cmd, "unlocks", new LockingAndXRange[0]);
        setField(cmd, "largeFile", false);
        byte[] buf = new byte[12]; // Buffer needs to be at least 12 bytes for the parameter words
        cmd.writeParameterWordsWireFormat(buf, 0);
        // The flag must be present so the command recognises largeFile
        SmbComLockingAndX copy = new SmbComLockingAndX(cfg);

	if _, err := objAPI.GetBucketInfo(ctx, bucket, BucketOptions{}); err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	// Error out if Content-Length is missing.
	// PutBucketPolicy always needs Content-Length.
	if r.ContentLength <= 0 {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMissingContentLength), r.URL)
		return
	}

	// Error out if Content-Length is beyond allowed size.

				return
			}
		}
	}

	// Start separate goroutine for each listener to handle connection.
	for idx, ln := range listener.listeners {
		go handleListener(idx, ln)
	}
}

// Accept - reads from httpListener.acceptCh for one of previously accepted TCP connection and returns the same.
func (listener *httpListener) Accept() (conn net.Conn, err error) {
	select {
	case result := <-listener.acceptCh:

                progressHandler = new VagrantProgressLogger("==> " + extension.getBox() + ": ");
            }
            OutputStream output = execSpec.getStandardOutput();
            // output from vagrant needs to be manually curated because --machine-readable isn't actually "readable"
            OutputStream progressStream = new ProgressOutputStream(vagrantSpec.command, progressHandler);

      val result0 = finder.find()
      assertThat(result0).isEqualTo(plan1.connection)
    }

    taskFaker.runTasks()
    assertEvents(
      "take plan 0",
      "plan 0 TCP connecting...",
      "plan 0 needs follow-up",
      "plan 1 TCP connecting...",
      "plan 1 TCP connected",
      "plan 1 TLS connecting...",
      "plan 1 TLS connected",
    )

    taskFaker.assertNoMoreTasks()
  }

  @Test