Import the tools we need from `passlib`.

Create a PassLib "context". This is what will be used to hash and verify passwords.

/// tip

The PassLib context also has functionality to use different hashing algorithms, including deprecated old ones only to allow verifying them, etc.

---> 100%
```

</div>

/// info

In Pydantic v1 it came included with the main package. Now it is distributed as this independent package so that you can choose to install it or not if you don't need that functionality.

///

### Create the `Settings` object { #create-the-settings-object }

Import `BaseSettings` from Pydantic and create a sub-class, very much like with a Pydantic model.

We are not using `scopes` in this example, but the functionality is there if you need it.

///

Now, get the user data from the (fake) database, using the `username` from the form field.

If there is no such user, we return an error saying "Incorrect username or password".

import org.codelibs.fess.crawler.rule.Rule;
import org.codelibs.fess.crawler.rule.RuleManager;
import org.dbflute.utflute.core.PlainTestCase;

/**
 * Test class for CrawlerContext.
 * Tests all functionality including thread safety and concurrent operations.
 */
public class CrawlerContextTest extends PlainTestCase {

    private CrawlerContext crawlerContext;

    @Override

	}

	// enable deleteExpired() running in separate goroutine for cache with non-zero TTL
	//
	// Important: done channel is never closed, so deleteExpired() goroutine will never exit,
	// it's decided to add functionality to close it in the version later than v2.
	if res.ttl != noEvictionTTL {
		go func(done <-chan struct{}) {
			ticker := time.NewTicker(res.ttl / numBuckets)
			defer ticker.Stop()
			for {
				select {

`FastAPI` is actually a sub-class of `Starlette`. So, if you already know or use Starlette, most of the functionality will work the same way.

With **FastAPI** you get all of **Starlette**'s features (as FastAPI is just Starlette on steroids):

application monitoring made easy - author: John Philip author_link: https://medium.com/@amjohnphilip link: https://python.plainenglish.io/building-a-restful-api-with-fastapi-secure-signup-and-login-functionality-included-45cdbcb36106 title: "Building a RESTful API with FastAPI: Secure Signup and Login Functionality Included" - author: Keshav Malik author_link: https://theinfosecguy.xyz/ link: https://blog.theinfosecguy.xyz/building-a-crud-api-with-fastapi-and-supabase-a-step-by-step-guide title: Building...

}

// TestXLStorageReadFile with bitrot verification - tests the xlStorage level
// ReadFile API with a BitrotVerifier. Only tests hashing related
// functionality. Other functionality is tested with
// TestXLStorageReadFile.
func TestXLStorageReadFileWithVerify(t *testing.T) {
	volume, object := "test-vol", "myobject"
	xlStorage, _, err := newXLStorageTestSetup(t)
	if err != nil {

import org.apache.maven.api.annotations.Nullable;

/**
 * Comprehensive service interface for XML operations including node creation,
 * merging, reading, and writing.
 *
 * <p>This class provides XML merging functionality for Maven's XML handling
 * and specifies the combination modes that control how XML elements are merged.</p>
 *
 * <p>The merger supports two main types of combinations:</p>
 * <ul>

/**
 * Utility class for text normalization and processing.
 *
 * This class provides methods to normalize text by reading characters from a provided Reader
 * and processing them according to specific rules. The main functionality is encapsulated
 * within the nested {@link TextNormalizeContext} class.
 *
 * <p>The text normalization process includes:
 * <ul>
 *   <li>Treating ISO control characters and specified space characters as spaces.</li>