When the `with` block finishes, it makes sure to close the file, even if there were exceptions.

When you create a dependency with `yield`, **FastAPI** will internally create a context manager for it, and combine it with some other related tools.

### Using context managers in dependencies with `yield` { #using-context-managers-in-dependencies-with-yield }

/// warning

This is, more or less, an "advanced" idea.

            int hash = (auth.getUsername() + auth.getPassword()).hashCode();
            buffer.append(hash).append('@');
        }

        // consider the URL (instead of the id) as this most closely relates to the contents in the repo
        buffer.append(repository.getUrl());

        return buffer.toString();
    }

    private void writeLastUpdated(File touchfile, String key, String error) {

   * {@link Predicate#apply}. Do not provide a predicate such as {@code
   * Predicates.instanceOf(ArrayList.class)}, which is inconsistent with equals. (See {@link
   * Iterables#filter(Iterable, Class)} for related functionality.)
   *
   * <p><b>Java 8+ users:</b> many use cases for this method are better addressed by {@link
   * java.util.stream.Stream#filter}. This method is not being deprecated, but we gently encourage

        assertTrue(Arrays.asList(result).contains(SuggestItem.Kind.DOCUMENT));
    }

    @Test
    public void testEmptySource() {
        // Test setEmptySource and related methods
        String[] text = { "test" };
        String[][] readings = { { "test" } };
        SuggestItem item = new SuggestItem(text, readings, null, 0L, 0L, 1.0f, null, null, null, SuggestItem.Kind.QUERY);

page.bad.word.max.fetch.size=1000
# Maximum number of dictionary records to fetch per page.
page.dictionary.max.fetch.size=1000
# Maximum number of related content records to fetch per page.
page.relatedcontent.max.fetch.size=5000
# Maximum number of related query records to fetch per page.
page.relatedquery.max.fetch.size=5000
# Maximum number of thumbnail queue records to fetch per page.

import jakarta.servlet.ServletContext;
import jakarta.servlet.SessionTrackingMode;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpSession;

/**
 * Helper class for handling view-related operations in the Fess search system.
 * This class provides utilities for content rendering, URL processing, highlighting,
 * caching, pagination, and user interface functionality.
 *
 */
public class ViewHelper {

        }
    }

    @Override
    protected Number doReadNextVal() {
        final String msg = "This table is NOT related to sequence: " + asEsIndexType();
        throw new UnsupportedOperationException(msg);
    }

    @Override

  /**
   * End of Transmission Block: A communication control character used to indicate the end of a
   * block of data for communication purposes. ETB is used for blocking data where the block
   * structure is not necessarily related to the processing format.
   *
   * @since 8.0
   */
  public static final byte ETB = 23;

  /**
   * Cancel: A control character used to indicate that the data with which it is sent is in error or

```

## `APIRouter` { #apirouter }

Let's say the file dedicated to handling just users is the submodule at `/app/routers/users.py`.

You want to have the *path operations* related to your users separated from the rest of the code, to keep it organized.

But it's still part of the same **FastAPI** application/web API (it's part of the same "Python Package").

        }

        @Override
        public ApiResult result() {
            return new ApiResult(this);
        }
    }

    /**
     * Represents an API response for storage-related operations, typically containing a list of items.
     */
    public static class ApiStorageResponse extends ApiResponse {
        /** The list of storage items. */
        protected List<Map<String, Object>> items;