* Então, ao utilizar o FastAPI você estará economizando tempo de desenvolvimento, evitará _bugs_, linhas de código, e você provavelmente terá a mesma performance (ou melhor) do que não utilizá-lo (já que você teria que implementar tudo isso em seu código).

		}

		if !isSet {
			w.Header().Set(k, v)
		}
	}

	var start, rangeLen int64
	totalObjectSize, err := objInfo.GetActualSize()
	if err != nil {
		return err
	}

	if rs == nil && opts.PartNumber > 0 {
		rs = partNumberToRangeSpec(objInfo, opts.PartNumber)
	}

	// For providing ranged content
	start, rangeLen, err = rs.GetOffsetLength(totalObjectSize)
	if err != nil {
		return err
	}

        });
    }

    protected void searchPaging(final RenderData data, final SearchForm form) {
        RenderDataUtil.register(data, "groupItems", groupService.getGroupList(groupPager)); // page navi

        // restore from pager
        copyBeanToBean(groupPager, form, op -> op.include("id"));
    }

    // ===================================================================================

    protected void searchPaging(final RenderData data, final SearchForm form) {
        RenderDataUtil.register(data, "pathMappingItems", pathMappingService.getPathMappingList(pathMapPager)); // page navi

        // restore from pager
        copyBeanToBean(pathMapPager, form, op -> op.include("regex", "replacement"));
    }

    // ===================================================================================

- github.com/blang/semver: [v3.5.0+incompatible → v3.5.1+incompatible](https://github.com/blang/semver/compare/v3.5.0...v3.5.1)
- github.com/checkpoint-restore/go-criu/v4: [v4.0.2 → v4.1.0](https://github.com/checkpoint-restore/go-criu/v4/compare/v4.0.2...v4.1.0)
- github.com/containerd/containerd: [v1.3.3 → v1.4.1](https://github.com/containerd/containerd/compare/v1.3.3...v1.4.1)

- Kube-proxy, will restart in case it detects that the Node assigned pod.Spec.PodCIDRs have changed ([#113258](https://github.com/kubernetes/kubernetes/pull/113258), [@code-elinka](https://github.com/code-elinka)) [SIG Network]

         */
        return new Iterator<T>() {
          boolean atStart = true;

          @Override
          public boolean hasNext() {
            return iterator.hasNext();
          }

          @Override
          @ParametricNullness
          public T next() {
            T result = iterator.next();
            atStart = false; // not called if next() fails
            return result;
          }

    protected long queryTime;

    // for testing
    protected QueryResponseList(final List<Map<String, Object>> documentList, final int start, final int pageSize, final int offset) {
        parent = documentList;
        this.offset = offset;
        this.start = start;
        this.pageSize = pageSize;
    }

    protected void searchPaging(final RenderData data, final SearchForm form) {
        RenderDataUtil.register(data, "crawlingInfoItems", crawlingInfoService.getCrawlingInfoList(crawlingInfoPager)); // page navi

        // restore from pager
        copyBeanToBean(crawlingInfoPager, form, op -> op.include("sessionId"));
    }

    // ===================================================================================

```Python hl_lines="13  15"
{!../../docs_src/custom_request_and_route/tutorial002.py!}
```

Se uma exceção ocorrer, a instância `Request` ainda estará em escopo, então podemos ler e fazer uso do corpo da requisição ao lidar com o erro:

```Python hl_lines="16-18"
{!../../docs_src/custom_request_and_route/tutorial002.py!}
```