if err := DB.Exec(`
CREATE TABLE public.log_usage (
    log_id bigint NOT NULL
);

ALTER TABLE public.log_usage ALTER COLUMN log_id ADD GENERATED BY DEFAULT AS IDENTITY (
    SEQUENCE NAME public.log_usage_log_id_seq
    START WITH 1
    INCREMENT BY 1
    NO MINVALUE
    NO MAXVALUE
    CACHE 1
);
	`).Error; err != nil {
		t.Fatalf("failed to create table, got error %v", err)
	}

            // Leading zeros removed and consecutive zeros compressed
            assertEquals("2001:db8::1", method.invoke(null, "2001:0db8:0:0:0:0:0:1"));

            // Longest sequence of zeros compressed (3 zeros at end vs 1 zero at start)
            assertEquals("2001:db8:0:1::1", method.invoke(null, "2001:0db8:0:1:0:0:0:1"));

 * When making TLS connections with multiple [connection specs](https://square.github.io/okhttp/5.x/okhttp/okhttp3/-connection-spec/), these are attempted in sequence until the TLS handshake succeeds.

### [Connections](https://square.github.io/okhttp/5.x/okhttp/okhttp3/-connection/)

When you request a URL with OkHttp, here's what it does:

        resourceHandler.setBaseResource(ResourceFactory.of(resourceHandler).newResource(Path.of(docRoot.getAbsolutePath())));
        logger.info("serving {}", docRoot.getAbsolutePath());
        server.setHandler(new Handler.Sequence(resourceHandler, new DefaultHandler()));
    }

    public void start() {
        try {
            server.start();
        } catch (final Exception e) {
            throw new CrawlerSystemException(e);
        }

 * UTF-8.
 *
 * <p><b>Note:</b> This escaper produces <a
 * href="https://url.spec.whatwg.org/#percent-encode">uppercase</a> hexadecimal sequences.
 *
 * @author David Beaumont
 * @since 15.0
 */
@GwtCompatible
public final class PercentEscaper extends UnicodeEscaper {

  // In some escapers spaces are escaped to '+'

 * (like 0030..0039).
 *
 * The second element on each line is a mapping type, like `valid` or `mapped`.
 *
 * For lines that contain a mapping target, the next thing is a sequence of hex code points (like
 * 0031 2044 0034).
 *
 * All other data is ignored.
 */
fun BufferedSource.readPlainTextIdnaMappingTable(): SimpleIdnaMappingTable {
  val mappedTo = Buffer()

{* ../../docs_src/background_tasks/tutorial001_py310.py hl[14] *}

`.add_task()` receives as arguments:

* A task function to be run in the background (`write_notification`).
* Any sequence of arguments that should be passed to the task function in order (`email`).
* Any keyword arguments that should be passed to the task function (`message="some notification"`).

## Dependency Injection { #dependency-injection }

        assertEquals("newValue", dataStoreParams.get("key1"));

        dataStoreParams.put("key1", null);
        assertNull(dataStoreParams.get("key1"));
    }

    // Test multiple operations in sequence
    @Test
    public void test_multipleOperations() {
        // Add initial values
        dataStoreParams.put("key1", "value1");
        dataStoreParams.put("key2", 123);

### EventListener

Subclass [EventListener](https://square.github.io/okhttp/5.x/okhttp/okhttp3/-event-listener/) and override methods for the events you are interested in. In a successful HTTP call with no redirects or retries the sequence of events is described by this flow.

![Events Diagram](../assets/images/******@****.***)

    }

    @Test
    public void test_isValidUploadPath_pathTraversal_multipleTraversals() throws Exception {
        // Test multiple path traversal sequences
        File baseDir = new File(tempDir.toFile(), "images");
        baseDir.mkdirs();
        File maliciousFile = new File(baseDir, "a/b/c/../../../../../tmp/evil");