This document focuses on showing a working example on how to use Object Lambda with MinIO, you must have [MinIO deployed in your environment](https://docs.min.io/community/minio-object-store/operations/installation.html) before you can start using external lambda functions. You also must install Python version 3.8 or later for the lambda handlers to work.

## Example Lambda handler

Install the necessary dependencies.

    val testFilesCleanupService = project.gradle.sharedServices.registerIfAbsent("testFilesCleanupBuildService", TestFilesCleanupService::class.java) {
        throw IllegalStateException("Must be already created")
    }

    project.tasks.withType<ValidatePlugins>().configureEach {
        testFilesCleanupService.get().addTaskReports(path, validatePluginsReports())
    }

import org.junit.Ignore;

/**
 * Tests {@link java.util.Collection#equals}.
 *
 * @author George van den Driessche
 */
@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")

   * ...
   * queue.add(element); // Needn't be in synchronized block
   * ...
   * synchronized (queue) { // Must synchronize on queue!
   *   Iterator<E> i = queue.iterator(); // Must be in synchronized block
   *   while (i.hasNext()) {
   *     foo(i.next());
   *   }
   * }
   * }
   *

**Important**: Always match the link syntax used in the English source document. If the English source uses Markdown-style links (`[text](url)`), the translation must also use Markdown-style links. If the English source uses HTML-style links (`<a href="url">text</a>`), the translation must also use HTML-style links. The link format in the translation must always mirror the link format in the English source.

### HTML abbr elements

    }

    /**
     * Creates a new class realm with the specified parent and imports.
     *
     * @param baseRealmId The base id to use for the new realm, must not be {@code null}.
     * @param type The type of the class realm, must not be {@code null}.
     * @param parent The parent realm for the new realm, may be {@code null}.

import java.util.Map.Entry;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;
import org.junit.Ignore;

/** Skeleton for a tester of a {@code BiMap}. */
@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")
@NullMarked

 * directly; please 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")

 * directly; please see {@link com.google.common.collect.testing.MapTestSuiteBuilder}.
 *
 * @author George van den Driessche
 */
@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")

 * {@code SortedSetTestSuiteBuilder}.
 *
 * @author Jesse Wilson
 * @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")
@NullMarked