In this case, this `__call__` is what **FastAPI** will use to check for additional parameters and sub-dependencies, and this is what will be called to pass a value to the parameter in your *path operation function* later.

## Parameterize the instance { #parameterize-the-instance }

And now, we can use `__init__` to declare the parameters of the instance that we can use to "parameterize" the dependency:

     * Configuration settings for Fess application.
     * Contains various configuration parameters used throughout the application.
     */
    @Resource
    protected FessConfig fessConfig;

    /**
     * Retrieves a paginated list of related content entities.
     *
     * @param relatedContentPager the pager object containing pagination and search parameters
     * @return a list of RelatedContent entities matching the specified criteria

# Path Operation Configuration { #path-operation-configuration }

There are several parameters that you can pass to your *path operation decorator* to configure it.

/// warning

Notice that these parameters are passed directly to the *path operation decorator*, not to your *path operation function*.

///

## Response Status Code { #response-status-code }

You can define the (HTTP) `status_code` to be used in the response of your *path operation*.

 * <p>
 * The class under test is a simple wrapper around the base class that
 * sets internal fields in its constructor.
 * These tests verify that the constructor accepts various parameters
 * without throwing exceptions.
 */
@ExtendWith(MockitoExtension.class)
class MsrpcSamrConnect2Test {

    // Helper method to create a minimal SamrPolicyHandle instance.

            false, "keyword", 0, 0, null, null, false, null, null, null, null, null, false);
    protected final ColumnInfo _columnParameters = cci("parameters", "parameters", null, null, String.class, "parameters", null, false,
            false, false, "keyword", 0, 0, null, null, false, null, null, null, null, null, false);

import jakarta.annotation.Resource;

/**
 * Abstract base class for CrawlerClient implementations.
 * Provides common functionality for handling initialization parameters,
 * content length checks, and default method implementations.
 * It defines the basic structure and configuration options for crawler clients.
 */
public abstract class AbstractCrawlerClient implements CrawlerClient {

        assertEquals((byte) 0x00, next.maxSetupCount, "Max setup count must be 0");

        // Information level defaults to BOTH_DIRECTORY_INFO (0x104) — check via parameters encoding
        byte[] buf = new byte[2 + 2 + 2 + 4 + 2 + filename.length() + 1];
        int n = next.writeParametersWireFormat(buf, 0);
        assertEquals(buf.length, n, "Parameter bytes written should match expected length");

   * {@code lexicographical(Collections.reverseOrder(comparator))} (consider how each would order
   * {@code [1]} and {@code [1, 1]}).
   */
  // Note: 90% of the time we don't add type parameters or wildcards that serve only to "tweak" the
  // desired return type. However, *nested* generics introduce a special class of problems that we
  // think tip it over into being worthwhile.

**FastAPI** takes advantage of these type hints to do several things.

With **FastAPI** you declare parameters with type hints and you get:

* **Editor support**.
* **Type checks**.

...and **FastAPI** uses the same declarations to:

* **Define requirements**: from request path parameters, query parameters, headers, bodies, dependencies, etc.
* **Convert data**: from the request to the required type.

    <description>
      Returns query parameters for More Like This.
    </description>
    <name>mltQuery</name>
    <function-class>org.codelibs.fess.taglib.FessFunctions</function-class>
    <function-signature>java.lang.String mltQuery()</function-signature>
    <example>
      ${fe:mltQuery()}
    </example>
  </function>

  <function>
    <description>
      Returns query parameters for Geo.
    </description>