Você deve ter percebido que para criar um instância de uma classe em Python, a mesma sintaxe é utilizada.

Por exemplo:

```Python
class Cat:
    def __init__(self, name: str):
        self.name = name


fluffy = Cat(name="Mr Fluffy")
```

Nesse caso,  `fluffy` é uma instância da classe `Cat`.

E para criar `fluffy`, você está "chamando" `Cat`.

Então, uma classe Python também é "chamável".

## Classes as dependencies

You might notice that to create an instance of a Python class, you use that same syntax.

For example:

```Python
class Cat:
    def __init__(self, name: str):
        self.name = name


fluffy = Cat(name="Mr Fluffy")
```

In this case, `fluffy` is an instance of the class `Cat`.

And to create `fluffy`, you are "calling" `Cat`.

So, a Python class is also a **callable**.

		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
		return
	}
	var checkObjMeta metaCheckFn
	if metadata {
		checkObjMeta = func(name string, action policy.Action) (s3Err APIErrorCode) {
			return checkRequestAuthType(ctx, r, action, bucket, name)
		}
	}
	urlValues := r.Form

	// Extract all the listBucketVersions query params to their native values.

            final long now = ComponentUtil.getSystemHelper().getCurrentTimeAsLong();
            final String name = attributes.getValue("Name");
            labelType = new LabelType();
            labelType.setName(name);
            labelType.setValue(name);
            labelType.setPermissions(new String[] { "Rguest" });
            labelType.setCreatedBy(Constants.SYSTEM_USER);

from fastapi import FastAPI
from pydantic import BaseModel, HttpUrl

app = FastAPI()


class Image(BaseModel):
    url: HttpUrl
    name: str


@app.post("/images/multiple/")
async def create_multiple_images(images: list[Image]):

NAME       CLUSTER      CDS       LDS        EDS        RDS          ECDS         ISTIOD      VERSION
proxy1     cluster1     STALE     SYNCED     SYNCED     NOT SENT     NOT SENT     istiod1     1.20

import pytest
from fastapi.testclient import TestClient

from ...utils import needs_py39


@pytest.fixture(name="client")
def get_client():
    from docs_src.extra_models.tutorial005_py39 import app

    client = TestClient(app)
    return client


@needs_py39
def test_get_items(client: TestClient):
    response = client.get("/keyword-weights/")
    assert response.status_code == 200, response.text

{
  "name": "Hacking Gopher",
  "version": "1.0",
  "manifest_version": 2,
  "description": "Go Hacking utility",
  "background": {
    "page": "background.html"
  },
  "browser_action": {
    "default_icon": "gopher.png",
    "default_popup": "popup.html"
  },
  "omnibox": { "keyword": "golang" },
  "icons": {
    "16": "gopher.png"
  },
  "permissions": [
     "tabs"
  ]

plugins {
    `kotlin-dsl`
}

description = "Provides a plugin to define the version and name for subproject publications"

group = "gradlebuild"

dependencies {
    api(platform(projects.buildPlatform))

    implementation(projects.basics)

    implementation("com.google.code.gson:gson")

{
  "cniVersion": "0.4.0",
  "name": "dbnet",
  "plugins": [
    {
      "type": "bridge",
      "bridge": "cni0",
      "args": {
        "labels" : {
            "appVersion" : "1.0"
        }
      },
      "ipam": {
        "type": "host-local",
        "subnet": "10.1.0.0/16",
        "gateway": "10.1.0.1"
      },
      "dns": {
        "nameservers": [ "10.1.0.1" ]
      }
    },
    {