* <p>
     * The returned duration is calculated using {@link System#nanoTime()}
     * to ensure monotonic behavior. This duration represents the exact time
     * span between clock initialization and the current instant.
     *
     * @return the duration since clock initialization
     * @see #startInstant()
     * @see #instant()
     */
    public Duration elapsedTime() {

///

This is of course not the frontend for the final users, but it's a great automatic tool to document interactively all your API.

It can be used by the frontend team (that can also be yourself).

It can be used by third party applications and systems.

And it can also be used by yourself, to debug, check and test the same application.

## The `password` flow { #the-password-flow }

            assertEquals(expected, subRangeSet);
            assertEquals(expected.asRanges(), subRangeSet.asRanges());
            if (!expected.isEmpty()) {
              assertEquals(expected.span(), subRangeSet.span());
            }
            for (int i = -3; i <= 3; i++) {
              assertEquals(expected.contains(i), subRangeSet.contains(i));
            }
          }
        }
      }
    }
  }

### Providing the `root_path` { #providing-the-root-path }

To achieve this, you can use the command line option `--root-path` like:

<div class="termy">

```console
$ fastapi run main.py --forwarded-allow-ips="*" --root-path /api/v1

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

plugins: forked-1.1.3, xdist-1.31.0, cov-2.8.1
collected 6 items

---> 100%

test_main.py <span style="color: green; white-space: pre;">......                            [100%]</span>

<span style="color: green;">================= 1 passed in 0.03s =================</span>
```

labels.search=Buscar
labels.similar_doc_result_status=Mostrando resultados similares.
labels.search_result_status=Resultados de búsqueda para <b>{0}</b><span class="br-phone"></span> <b>{2}</b> - <b>{3}</b> de <b>{1}</b>
labels.search_result_status_over=Resultados de búsqueda para <b>{0}</b><span class="br-phone"></span> <b>{2}</b> - <b>{3}</b> de más de <b>{1}</b>
labels.search_result_time=({0} segundos)
labels.prev_page=Anterior
labels.next_page=Siguiente

labels.search=검색
labels.similar_doc_result_status=유사한 결과를 표시하고 있습니다.
labels.search_result_status=<b>{0}</b>의 검색 결과 <span class="br-phone"></span> <b>{1}</b>건 중 <b>{2}</b> - <b>{3}</b>건째
labels.search_result_status_over=<b>{0}</b>의 검색 결과 <span class="br-phone"></span> 약 <b>{1}</b>건 이상 <b>{2}</b> - <b>{3}</b>건째
labels.search_result_time=({0}초)
labels.prev_page=이전
labels.next_page=다음

Then you could disable OpenAPI (including the UI docs) by setting the environment variable `OPENAPI_URL` to the empty string, like:

<div class="termy">

```console
$ OPENAPI_URL= uvicorn main:app

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

Then if you go to the URLs at `/openapi.json`, `/docs`, or `/redoc` you will just get a `404 Not Found` error like:

We can also **delete** a `Hero`.

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[66:73] hl[71] *}

### Run the App { #run-the-app }

You can run the app:

<div class="termy">

```console
$ fastapi dev main.py

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

      if (rangeMap.asMapOfRanges().isEmpty()) {
        return;
      }
      Range<K> span = rangeMap.span();
      checkArgument(
          subRange.encloses(span),
          "Cannot putAll rangeMap with span %s into a subRangeMap(%s)",
          span,
          subRange);
      TreeRangeMap.this.putAll(rangeMap);
    }

    @Override
    public void clear() {