The way you use it is very simple. For example, to do a `GET` request, you would write:

```Python
response = requests.get("http://example.com/some/url")
```

The FastAPI counterpart API *path operation* could look like:

```Python hl_lines="1"
@app.get("/some/url")
def read_url():
    return {"message": "Hello World"}
```

See the similarities in `requests.get(...)` and `@app.get(...)`.

/// check | "Inspired **FastAPI** to"

from fastapi import Cookie, FastAPI, Header, Path, Query
from fastapi.testclient import TestClient

app = FastAPI()


@app.get("/hidden_cookie")
async def hidden_cookie(
    hidden_cookie: Optional[str] = Cookie(default=None, include_in_schema=False),
):
    return {"hidden_cookie": hidden_cookie}


@app.get("/hidden_header")
async def hidden_header(
    hidden_header: Optional[str] = Header(default=None, include_in_schema=False),
):

def test_query_optional():
    response = client.get("/query/optional")
    assert response.status_code == 200
    assert response.json() == "foo bar"


def test_query_optional_query_baz():
    response = client.get("/query/optional?query=baz")
    assert response.status_code == 200
    assert response.json() == "foo bar baz"


def test_query_optional_not_declared_baz():
    response = client.get("/query/optional?not_declared=baz")

    response.body.close()
    applicationLogs
      .assertLogEqual("--> GET $url")
      .assertLogEqual("--> END GET")
      .assertLogMatch(Regex("""<-- 200 OK $url \(\d+ms\)"""))
      .assertLogEqual("Content-Length: 0")
      .assertLogEqual("<-- END HTTP")
      .assertNoMoreLogs()
    networkLogs
      .assertLogEqual("--> GET $url http/1.1")
      .assertLogEqual("Host: $host")

		if !defaultSigParams.Contains(k) {
			query[k] = v
		}
	}

	// Get the encoded query.
	encodedQuery := query.Encode()

	// Verify if date query is same.
	if req.Form.Get(xhttp.AmzDate) != query.Get(xhttp.AmzDate) {
		return ErrSignatureDoesNotMatch
	}
	// Verify if expires query is same.
	if req.Form.Get(xhttp.AmzExpires) != query.Get(xhttp.AmzExpires) {
		return ErrSignatureDoesNotMatch
	}

    // next map.get()
    when(backingMap.get(KEY)).thenReturn(existingZero);
    // since get returned zero, try a replace; that fails due to a simulated race
    when(backingMap.replace(eq(KEY), eq(existingZero), isA(AtomicInteger.class))).thenReturn(false);
    when(backingMap.putIfAbsent(eq(KEY), isA(AtomicInteger.class))).thenReturn(existing);

    // another map.get()

        assertEquals("", parameterMap.get("domain"));
        assertEquals("", parameterMap.get("workstation"));

        parameters = "domain=\nworkstation=";
        parameterMap = ParameterUtil.parse(parameters);
        assertEquals(2, parameterMap.size());
        assertEquals("", parameterMap.get("domain"));
        assertEquals("", parameterMap.get("workstation"));

        parameters = "domain=D\nworkstation=W";

      // asserts that all get calling threads received the same value
      Object result = Iterables.getOnlyElement(finalResults);
      if (result == CancellationException.class) {
        assertTrue(future.isCancelled());
        assertTrue(cancellationSuccess.get());
        assertFalse(setFutureSuccess.get());
      } else {
        assertTrue(setFutureSuccess.get());
        assertFalse(cancellationSuccess.get());

        buildTimestamp.get().let { timestampFormat.format(it) }

    private
    fun getBuildTimestampAsIsoString() =
        buildTimestamp.get().let { isoTimestampFormat.format(it) }

    private
    fun Logger.logBuildVersion() {
        lifecycle(
            "Version: ${version.get()} " +
                "(base version: ${baseVersion.get()}," +
                " timestamp: ${buildTimestamp.get()}," +

        assertEquals("222", paramMap.get("b")[0]);
        assertEquals("333", paramMap.get("c")[0]);

        paramMap = filter.parseQueryString("a=1&b=2&c=3&a=2", "UTF-8");
        assertEquals(3, paramMap.size());
        assertEquals("1", paramMap.get("a")[0]);
        assertEquals("2", paramMap.get("a")[1]);
        assertEquals("2", paramMap.get("b")[0]);
        assertEquals("3", paramMap.get("c")[0]);