* and from it, import the function `get_token_header`.

That would refer to some package above `app/`, with its own file `__init__.py`, etc. But we don't have that. So, that would throw an error in our example. 🚨

But now you know how it works, so you can use relative imports in your own apps no matter how complex they are. 🤓

<div class="termy">

```console
$ cd ~/code/prisoner-of-azkaban

$ python main.py

// Error importing sirius, it's not installed 😱
Traceback (most recent call last):
    File "main.py", line 1, in <module>
        import sirius
```

</div>

pkg bufio, method (*Writer) ReadFrom(io.Reader) (int64, error)
pkg bufio, method (ReadWriter) ReadFrom(io.Reader) (int64, error)
pkg bufio, method (ReadWriter) WriteTo(io.Writer) (int64, error)
pkg bufio, type Scanner struct
pkg bufio, type SplitFunc func([]uint8, bool) (int, []uint8, error)
pkg bufio, var ErrAdvanceTooFar error
pkg bufio, var ErrNegativeAdvance error
pkg bufio, var ErrTooLong error
pkg bytes, const MinRead = 512

          <version>1.1.0+</version>
          <type>String</type>
          <defaultValue>default,legacy</defaultValue>
          <description>
            The layouts of repositories being mirrored. This value can be used to restrict the usage
            of the mirror to repositories with a matching layout (apart from a matching id).
            @since Maven 3.
          </description>
        </field>

  private static AssertionError sanityError(
      Class<?> cls, List<String> explicitTestNames, String description, Throwable e) {
    String message =
        String.format(
            Locale.ROOT,
            "Error in automated %s of %s\n"
                + "If the class is better tested explicitly, you can add %s() to %sTest",
            description,
            cls,
            explicitTestNames.get(0),

            // Securely wipe the old key copy
            secureWipe(currentKey);
            secureWipe(newKey);

            return newVersion;

        } catch (Exception e) {
            log.error("Failed to rotate key for session: {}", sessionId, e);
            throw new GeneralSecurityException("Key rotation failed", e);
        }
    }

    /**

* You can ask them to provide a [minimal, reproducible, example](https://stackoverflow.com/help/minimal-reproducible-example), that you can **copy-paste** and run locally to see the same error or behavior they are seeing, or to understand their use case better.

	apiRouter.Methods(http.MethodGet).Path(SlashSeparator + SlashSeparator).
		HandlerFunc(s3APIMiddleware(api.ListBucketsHandler))

	// If none of the routes match add default error handler routes
	apiRouter.NotFoundHandler = collectAPIStats("notfound", httpTraceAll(errorResponseHandler))
	apiRouter.MethodNotAllowedHandler = collectAPIStats("methodnotallowed", httpTraceAll(methodNotAllowedHandler("S3")))
}

    /**
     * Sends a list of documents to the search engine for indexing.
     * This method handles thumbnail processing, deletes old documents with the same URL,
     * and performs bulk indexing operations with proper error handling.
     *
     * @param searchEngineClient the search engine client to use for indexing
     * @param docList the list of documents to be indexed

    } catch (ioe: IOException) {
      // https://github.com/square/okhttp/issues/5840
      when (ioe.cause) {
        is IllegalArgumentException -> {
          assertEquals("Android internal error", ioe.message)
        }

        is CertificateException -> {
          assertTrue(ioe.cause?.cause is IllegalArgumentException)
          assertEquals(
            true,
            ioe.cause