```

## Troubleshooting

### Common Issues

**Index Creation Fails**
- Verify OpenSearch cluster is accessible
- Check index permissions and mappings
- Ensure sufficient cluster resources

**Suggestions Not Appearing**
- Confirm documents are indexed: `suggester.refresh()`
- Check query formatting and filters
- Verify analyzer configurations

**Performance Issues**

func getDownloadURL(releaseTag string) (downloadURL string) {
	// Check if we are in DCOS environment, return
	// deployment guide for update procedures.
	if IsDCOS() {
		return mesosDeploymentDoc
	}

	// Check if we are in kubernetes environment, return
	// deployment guide for update procedures.
	if IsKubernetes() {
		return kubernetesDeploymentDoc
	}

	// Check if we are docker environment, return docker update command

    private final SrvCopychunk[] chunks;

    /**
     * Constructs a server copy chunk operation request
     * @param sourceKey the resume key identifying the source file
     * @param chunks the array of copy chunk descriptors
     */
    public SrvCopychunkCopy(final byte[] sourceKey, final SrvCopychunk... chunks) {
        this.sourceKey = sourceKey;
        this.chunks = chunks;
    }

    /**
     * {@inheritDoc}

stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e")}.form-check{display:block;min-height:1.5rem;padding-left:1.5em;margin-bottom:.125rem}.form-check .form-check-input{float:left;margin-left:-1.5em}.form-check-reverse{padding-right:1.5em;padding-left:0;text-align:right}.form-check-reverse .form-check-input{float:right;margin-right:-1.5em;margin-left:0}.form-check-input{--bs-form-check-bg:var(--bs-body-bg);width:1em;height:1em;margin-top:.25em;vertical-align:top;backgro...

right:-5px;margin-left:-5px}.form-row>.col,.form-row>[class*=col-]{padding-right:5px;padding-left:5px}.form-check{position:relative;display:block;padding-left:1.25rem}.form-check-input{position:absolute;margin-top:.3rem;margin-left:-1.25rem}.form-check-input:disabled~.form-check-label,.form-check-input[disabled]~.form-check-label{color:#6c757d}.form-check-label{margin-bottom:0}.form-check-inline{display:-ms-inline-flexbox;display:inline-flex;-ms-flex-align:center;align-items:center;padding-left:...

        void testDecodeVariousChunksWritten(int chunks) throws SMBProtocolDecodingException {
            byte[] buffer = createValidCopyChunkResponse(chunks, 0, 0);

            int bytesDecoded = response.decode(buffer, 0, buffer.length);

            assertEquals(12, bytesDecoded);
            assertEquals(chunks, response.getChunksWritten());
        }

        @ParameterizedTest

{* ../../docs_src/header_param_models/tutorial001_an_py310.py hl[9:14,18] *}

**FastAPI** will **extract** the data for **each field** from the **headers** in the request and give you the Pydantic model you defined.

## Check the Docs { #check-the-docs }

You can see the required headers in the docs UI at `/docs`:

<div class="screenshot">
<img src="/img/tutorial/header-param-models/image01.png">
</div>

   * this class ({@code Resources}) will be used instead.
   *
   * @throws IllegalArgumentException if the resource is not found
   */
  @CanIgnoreReturnValue // being used to check if a resource exists
  // TODO(cgdecker): maybe add a better way to check if a resource exists
  // e.g. Optional<URL> tryGetResource or boolean resourceExists
  public static URL getResource(String resourceName) {
    ClassLoader loader =

      // boolean condition2 = nodeU().equals(other.nodeV()) && nodeV().equals(other.nodeU());
      // return condition1 || condition2;
      if (nodeU().equals(other.nodeU())) { // check condition1
        // Here's the tricky bit. We don't have to explicitly check for condition2 in this case.
        // Why? The second half of condition2 requires that nodeV equals other.nodeU.

     * If `new PacCredentialType(null)` throws, it implies `isCredentialTypeCorrect()` returned false for null.
     */
    @Test
    void testIsCredentialTypeCorrectWithNullData() {
        // The constructor check `if (!isCredentialTypeCorrect())` handles the null case.
        // We verify that the constructor throws an exception, which indirectly tests the desired logic.