## Using `TestClient`

/// info

To use `TestClient`, first install <a href="https://www.python-httpx.org" class="external-link" target="_blank">`httpx`</a>.

Make sure you create a [virtual environment](../virtual-environments.md){.internal-link target=_blank}, activate it, and then install it, for example:

```console
$ pip install httpx
```

///

Import `TestClient`.

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package install

import (
	"os"
	"path/filepath"

	"istio.io/istio/pkg/file"
	"istio.io/istio/pkg/util/sets"
)

// Copies/mirrors any files present in a single source dir to N number of target dirs

	@mkdir -p ${GOPATH}/bin
	@echo "Installing golangci-lint" && curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(GOLANGCI_DIR)
	@echo "Installing msgp" && go install -v github.com/tinylib/msgp@v1.2.3-0.20241022140105-4558fbf3a223
	@echo "Installing stringer" && go install -v golang.org/x/tools/cmd/stringer@latest

crosscompile: ## cross compile minio
	@(env bash $(PWD)/buildscripts/cross-compile.sh)

     */
    static final String DEFAULT_ENCODING = StandardCharsets.UTF_8.name();

    /** Constant for the platform specific line separator.*/
    private static final String LINE_SEPARATOR = System.lineSeparator();

    /** Constant for the radix of hex numbers.*/
    private static final int HEX_RADIX = 16;

    /** Constant for the length of a unicode literal.*/
    private static final int UNICODE_LEN = 4;

        actualCrcHasher);
  }

  // From RFC 3720, Section 12.1, the polynomial generator is 0x11EDC6F41.
  // We calculate the constant below by:
  //   1. Omitting the most significant bit (because it's always 1). => 0x1EDC6F41
  //   2. Flipping the bits of the constant so we can process a byte at a time. => 0x82F63B78
  private static final int CRC32C_GENERATOR = 0x1EDC6F41; // 0x11EDC6F41

<div class="termy">

```console
$ pip install "fastapi[all]"

---> 100%
```

</div>

...👈 🔌 `uvicorn`, 👈 👆 💪 ⚙️ 💽 👈 🏃 👆 📟.

/// note

👆 💪 ❎ ⚫️ 🍕 🍕.

👉 ⚫️❔ 👆 🔜 🎲 🕐 👆 💚 🛠️ 👆 🈸 🏭:

```
pip install "fastapi[standard]"
```

❎ `uvicorn` 👷 💽:

```
pip install "uvicorn[standard]"
```

 &amp; 🎏 🔠 📦 🔗 👈 👆 💚 ⚙️.

///

        TestExecutionResult.Status.SUCCESSFUL -> printStatus(".")
      }
    }
  }

  override fun testPlanExecutionFinished(testPlan: TestPlan) {
    originalSystemErr?.println()
  }

  fun install() {
    originalSystemOut = System.out
    originalSystemErr = System.err

    System.setOut(object : PrintStream(OutputStream.nullOutputStream()) {})

    + row.withPanels([
      panels.timeSeries.base('Ztunnel Versions', queries.istioBuild, 'Version number of each running instance'),
      panels.timeSeries.bytes('Memory Usage', queries.memUsage, 'Memory usage of each running instance'),
      panels.timeSeries.base('CPU Usage', queries.cpuUsage, 'CPU usage of each running instance'),
    ]),
    row.new('Network')
    + row.withPanels([

    }

    /**
     * Serialize the inbound Model instance to a StringWriter, perform the regex replacement to resolve
     * POM expressions, then re-parse into the resolved Model instance.
     * <p>
     * <b>NOTE:</b> This will result in a different instance of Model being returned!!!
     *
     * @param model The inbound Model instance, to serialize and reference for expression resolution

  public <E extends Comparable<?>> E min(E a, E b) {
    return NaturalOrdering.INSTANCE.max(a, b);
  }

  @Override
  public <E extends Comparable<?>> E min(E a, E b, E c, E... rest) {
    return NaturalOrdering.INSTANCE.max(a, b, c, rest);
  }

  @Override
  public <E extends Comparable<?>> E min(Iterator<E> iterator) {
    return NaturalOrdering.INSTANCE.max(iterator);
  }

  @Override