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.

     *
     * Instead, we'll encode the path to the file in the description data field, as a link.  This is
     * useful regardless of this renderer's needs, since now there will be a link embedded in the report
     * to quickly open the changes file.  By then we can also regex that path out of the description
     * in order to create a changes {@link File} for further use in this class.

	if objAPI == nil {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
		return
	}

	vars := mux.Vars(r)
	bucket := vars["bucket"]

	// PutBucketLifecycle always needs a Content-Md5
	if !validateLengthAndChecksum(r) {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMissingContentMD5), r.URL)
		return
	}

// net effect, i.e. it is already applied.
var errNoPolicyToAttachOrDetach = errors.New("Specified policy update has no net effect")

// error returned in IAM subsystem when a non-empty group needs to be
// deleted.
var errGroupNotEmpty = errors.New("Specified group is not empty - cannot remove it")

// error returned in IAM subsystem when a group is disabled

        // 3. Sending the request through the appropriate transport
        // 4. Processing the response

        // For now, we'll return false to indicate that the concrete implementation
        // needs to be provided by the calling code
        log.warn("performReconnection called but no concrete implementation available. "
                + "This method should be overridden by the actual SMB implementation.");

the same but `.kt` files now need `Companion` in the import.

This works with OkHttp 3.x:

```kotlin
import okhttp3.CipherSuite.forJavaName
```

But OkHttp 4.x needs a `Companion`:

```kotlin
import okhttp3.CipherSuite.Companion.forJavaName
```

In the unlikely event that you have a lot of these, run this:

```bash
sed -i "" \

                    // Note: pluginsNeedingManagement only contains entries for POMs that should receive plugin
                    // management
                    // (i.e., the "last local parent" for each plugin that needs management)
                    Set<String> pluginsForThisPom = pluginsNeedingManagement.get(pomPath);
                    if (pluginsForThisPom != null && !pluginsForThisPom.isEmpty()) {

    }

    @Override
    public void transferCorrupted(TransferEvent event) throws TransferCancelledException {
        TransferResource resource = event.getResource();
        // TODO This needs to be colorized
        out.println("[WARNING] " + event.getException().getMessage() + " from " + resource.getRepositoryId() + " for "
                + resource.getRepositoryUrl() + resource.getResourceName());
    }

// indicates readDirFn to return without further applying the fn()
var errDoneForNow = errors.New("done for now")

// errSkipFile returned by the fn() for readDirFn() when it needs
// to proceed to next entry.
var errSkipFile = errors.New("skip this file")

var errIgnoreFileContrib = errors.New("ignore this file's contribution toward data-usage")

You can use <a href="https://github.com/pydantic/bump-pydantic" class="external-link" target="_blank">`bump-pydantic`</a> 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 }