// Look ahead to find [source, ...] until next sample or end of example block
                String sourceLang = null;
                for (int j = i + 1; j < lines.size(); j++) {
                    String look = lines.get(j).trim();

                    if (look.equals("[.multi-language-sample]") || look.equals("====")) {
                        break; // stop at next sample or end of example block
                    }

    /**
     *
     */
    @Test
    public void test() {
        final SingleValueIterator<String> it = new SingleValueIterator<String>("Foo");
        assertThat(it.hasNext(), is(true));
        assertThat(it.next(), is("Foo"));
        assertThat(it.hasNext(), is(not(true)));
    }

			t.Errorf("test %d, found prefix in GNU format: %s", i, prefix)
		}

		tr := NewReader(&b)
		hdr, err := tr.Next()
		if err != nil && err != ErrInsecurePath {
			t.Errorf("test %d, unexpected Next error: %v", i, err)
		}
		if hdr.Name != name {
			t.Errorf("test %d, hdr.Name = %s, want %s", i, hdr.Name, name)
		}
	}
}

        }

        return false
      }

      override fun next(): String {
        if (!hasNext()) throw NoSuchElementException()
        val result = nextUrl!!
        nextUrl = null
        canRemove = true
        return result
      }

      override fun remove() {
        check(canRemove) { "remove() before next()" }
        delegate.remove()
      }
    }
  }

I'll show you some concrete examples in the next chapters.

---

Then the next concepts to consider are all about the program running your actual API (e.g. Uvicorn).

## Program and Process { #program-and-process }

OkCurl
======

_A curl for the next-generation web._

OkCurl is an OkHttp-backed curl clone which allows you to test OkHttp's HTTP engine (including
HTTP/2) against web servers.

To run locally, make sure you have GRAALVM_HOME set and run

```bash
./okcurl

$(function() {
  $('input[type="text"],select,textarea', ".login-box,section.content")
    .first()
    .focus();
  $(".form-group .has-error")
    .first()
    .next("input,select,textarea")
    .focus();

  $("section.content input").keypress(function(e) {
    if (e.which === 13) {
      var $submitButton = $("input#submit, button#submit");
      if ($submitButton.size() > 0) {
        $submitButton[0].submit();
      }

                final DfsReferral start = dr;
                do {
                    final String domain = dr.server.toLowerCase();
                    entry.map.put(domain, new HashMap());
                    dr = dr.next;
                } while (dr != start);

                _domains = entry;
                return _domains.map;
            }
        } catch (final IOException ioe) {
            if (LogStream.level >= 3) {

            if (!createIndexResponse.isAcknowledged()) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Failed to create next index (not acknowledged): index={}", indexName);
                }
                throw new SuggesterException("Failed to create next index (not acknowledged): " + indexName);
            }

				b.RunParallel(func(pb *testing.PB) {
					rng := rand.New(rand.NewSource(time.Now().UnixNano()))
					n := 0
					var latency int64
					managers := grid.Managers
					hosts := grid.Hosts
					for pb.Next() {
						// Pick a random manager.
						src, dst := rng.Intn(len(managers)), rng.Intn(len(managers))
						if src == dst {
							dst = (dst + 1) % len(managers)
						}
						local := managers[src]