private final Executor executor;

    public DefaultArtifactResolver() {
        int threads = Integer.getInteger("maven.artifact.threads", 5);
        if (threads <= 1) {
            executor = Runnable::run;
        } else {
            executor = new ThreadPoolExecutor(
                    threads, threads, 3, TimeUnit.SECONDS, new LinkedBlockingQueue<>(), new DaemonThreadCreator());
        }
    }

```Python hl_lines="18-20"
{!../../docs_src/settings/tutorial001.py!}
```

### Run the server

Next, you would run the server passing the configurations as environment variables, for example you could set an `ADMIN_EMAIL` and `APP_NAME` with:

<div class="termy">

```console
$ ADMIN_EMAIL="******@****.***" APP_NAME="ChimichangApp" fastapi run main.py

                break;
            }
            i += n;
        }

        return i;
    }

    /*
     * state values
     * 0 - not connected
     * 1 - connecting
     * 2 - run connected
     * 3 - connected
     * 4 - error
     * 5 - disconnecting
     * 6 - disconnected/invalid
     */
    protected volatile int state = 0;

    protected String name = "Transport" + id++;

			bucket:           "mybucket",
			object:           "test/1.txt",
			expectedLocation: "https://mybucket.mys3.bucket.org/test/1.txt",
		},
	}
	for _, testCase := range testCases {
		testCase := testCase
		t.Run("", func(t *testing.T) {
			gotLocation := getObjectLocation(testCase.request, testCase.domains, testCase.bucket, testCase.object)
			if testCase.expectedLocation != gotLocation {

		{
			config:      "testdata/config/invalid-types.yaml",
			expectedErr: true,
		},
		{
			config:      "testdata/config/invalid-disks.yaml",
			expectedErr: true,
		},
	} {
		testcase := testcase
		t.Run(testcase.config, func(t *testing.T) {
			sctx := &serverCtxt{}
			err := mergeServerCtxtFromConfigFile(testcase.config, sctx)
			if testcase.expectedErr && err == nil {
				t.Error("expected failure, got success")
			}

 *
 * <p>However, when {@link CollectionSize.Require} is used to annotate a test it behaves normally
 * (i.e. it requires the collection instance under test to be a certain size for the test to run).
 * Note that this means a test should not require more than one CollectionSize, since a particular
 * collection instance can only be one size at once.
 *
 * @author George van den Driessche
 */

 * {@link com.google.common.collect.testing.MapTestSuiteBuilder}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")

	}{
		{
			allowABI: false,
			tests:    nonRuntimeTests,
		},
		{
			allowABI: true,
			tests:    runtimeTests,
		},
	}

	// Note these errors should be independent of the architecture.
	// Just run the test with amd64.
	parser := newParser("amd64")
	var buf strings.Builder
	parser.errorWriter = &buf

	for _, cat := range testcats {
		for _, test := range cat.tests {
			parser.allowABI = cat.allowABI

 * see {@link com.google.common.collect.testing.CollectionTestSuiteBuilder}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")

 * please see {@link com.google.common.collect.testing.ConcurrentMapTestSuiteBuilder}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")