function prepare_block_devices() {
	set -e
	mkdir -p ${WORK_DIR}/disks/ ${WORK_DIR}/mnt/
	sudo modprobe loop
	for i in 1 2 3 4; do
		dd if=/dev/zero of=${WORK_DIR}/disks/img.${i} bs=1M count=2000
		device=$(sudo losetup --find --show ${WORK_DIR}/disks/img.${i})
		sudo mkfs.ext4 -F ${device}
		mkdir -p ${WORK_DIR}/mnt/disk${i}/
		sudo mount ${device} ${WORK_DIR}/mnt/disk${i}/

_module_dir = _module_util.get_parent_dir_for_name("keras._tf_keras.keras")
_current_module.__path__ = [_module_dir] + _current_module.__path__
if _tf_uses_legacy_keras:
  _module_dir = _module_util.get_parent_dir_for_name("tf_keras.api._v1.keras")
else:
  _module_dir = _module_util.get_parent_dir_for_name("keras.api._v1.keras")
_current_module.__path__ = [_module_dir] + _current_module.__path__

    File dir1 = newDir("dir-1");
    newFile("dir-1/file-b");
    newFile("dir-1/dir-2");

    assertThat(Iterables.limit(Files.fileTraverser().breadthFirst(rootDir), 3))
        .containsExactly(rootDir, fileA, dir1);
  }

  public void testFileTraverser_multipleDirectoryLayers_traversalReturnsAll() throws Exception {
    File fileA = newFile("file-a");
    File dir1 = newDir("dir-1");

	}
}

func mktemp(dir, prefix string, t *testing.T) string {
	t.Helper()
	tempDir, err := os.MkdirTemp(dir, prefix)
	if err != nil {
		t.Fatalf("Couldn't get current working directory, err: %v", err)
	}
	t.Logf("Created temporary dir: %v", tempDir)
	return tempDir
}

func ls(dir string, t *testing.T) []string {
	files, err := os.ReadDir(dir)
	t.Helper()
	if err != nil {

		cat "$WORK_DIR/dist-minio-9000.log"
		echo "server2 log:"
		cat "$WORK_DIR/dist-minio-9001.log"
		echo "server3 log:"
		cat "$WORK_DIR/dist-minio-9002.log"
		echo "server4 log:"
		cat "$WORK_DIR/dist-minio-9003.log"
	fi

	rm -f "$WORK_DIR/dist-minio-9000.log" "$WORK_DIR/dist-minio-9001.log" "$WORK_DIR/dist-minio-9002.log" "$WORK_DIR/dist-minio-9003.log"

	return "$rv"
}

function purge() {
	rm -rf "$1"

		<delete dir="${webinf.dir}/plugin" />
		<mkdir dir="${webinf.dir}/plugin" />
		<delete dir="${crawler.dir}/lib" />
		<mkdir dir="${crawler.dir}/lib" />
		<delete dir="${suggest.dir}/lib" />
		<mkdir dir="${suggest.dir}/lib" />
		<delete dir="${thumbnail.dir}/lib" />
		<mkdir dir="${thumbnail.dir}/lib" />
		<!-- javax.annotation-api -->
		<antcall target="install.env.jar">
			<param name="repo.url" value="${maven.release.repo.url}" />

        fileSystemOperations.removeOldVersionsFromDir(workerDir.dir("caches"), expireDistributionCache)

        // Remove scripts caches
        fileSystemOperations.removeCachedScripts(workerDir.dir("caches").asFile)

        // Remove script caches from TestKit integTest temp dir
        // location defined in TempTestKitDirProvider, copied here

            userManual.getStagingRoot().convention(extension.getStagingRoot().dir("usermanual"));
            // TODO: These should be generated too
            userManual.getSnippets().convention(layout.getProjectDirectory().dir("src/snippets"));
            userManual.getSamples().convention(layout.getProjectDirectory().dir("src/samples"));

	exit 1
fi

WORK_DIR="$PWD/.verify-$RANDOM"
MINIO_CONFIG_DIR="$WORK_DIR/.minio"
MINIO=("$PWD/minio" --config-dir "$MINIO_CONFIG_DIR" server)
GOPATH=/tmp/gopath

function start_minio_3_node() {
	export MINIO_ROOT_USER=minio
	export MINIO_ROOT_PASSWORD=minio123
	export MINIO_ERASURE_SET_DRIVE_COUNT=6
	export MINIO_CI_CD=1

	first_time=$(find ${WORK_DIR}/ | grep format.json | wc -l)

	start_port=$2

		</condition>
	</target>

	<target name="download.dbflute" depends="mydbflute.check" unless="mydbflute.exists">
		<mkdir dir="${mydbflute.dir}" />
		<get dest="${target.dir}/mydbflute.zip">
			<url url="${mydbflute.url}" />
		</get>
		<unzip dest="${mydbflute.dir}" src="${target.dir}/mydbflute.zip">
			<patternset>
				<include name="lastaflute-example-waterfront-${branch.name}/mydbflute/dbflute-1.x/**" />