},
            "/users/{username}": {
                "get": {
                    "tags": ["users"],
                    "summary": "Read User",
                    "operationId": "read_user_users__username__get",
                    "parameters": [
                        {
                            "required": True,
                            "schema": {"title": "Username", "type": "string"},

            },
            "/users/{username}": {
                "get": {
                    "tags": ["users"],
                    "summary": "Read User",
                    "operationId": "read_user_users__username__get",
                    "parameters": [
                        {
                            "required": True,
                            "schema": {"title": "Username", "type": "string"},

                    "summary": "Login",
                    "operationId": "login_login__post",
                    "requestBody": {
                        "content": {
                            "application/x-www-form-urlencoded": {
                                "schema": {
                                    "$ref": "#/components/schemas/Body_login_login__post"
                                }
                            }

## 🖼 📁 📊

➡️ 💬 👆 ✔️ 📁 📊 💖 👉:

```
.
├── app
│   ├── __init__.py
│   ├── main.py
│   ├── dependencies.py
│   └── routers
│   │   ├── __init__.py
│   │   ├── items.py
│   │   └── users.py
│   └── internal
│       ├── __init__.py
│       └── admin.py
```

!!! tip
    📤 📚 `__init__.py` 📁: 1️⃣ 🔠 📁 ⚖️ 📁.

    👉 ⚫️❔ ✔ 🏭 📟 ⚪️➡️ 1️⃣ 📁 🔘 ➕1️⃣.

                            {"title": "Tax", "type": "number"}
                        ),
                    },
                },
                "Body_update_item_items__item_id__put": {
                    "title": "Body_update_item_items__item_id__put",
                    "required": ["item"],
                    "type": "object",
                    "properties": {"item": {"$ref": "#/components/schemas/Item"}},

                    },
                    "summary": "Main",
                    "operationId": "main__get",
                }
            },
        },
        "components": {
            "schemas": {
                "Body_create_upload_files_uploadfiles__post": {
                    "title": "Body_create_upload_files_uploadfiles__post",
                    "required": ["files"],
                    "type": "object",

                            {"title": "Tax", "type": "number"}
                        ),
                    },
                },
                "Body_update_item_items__item_id__put": {
                    "title": "Body_update_item_items__item_id__put",
                    "required": ["item"],
                    "type": "object",
                    "properties": {"item": {"$ref": "#/components/schemas/Item"}},

                    "operationId": "create_file_files__post",
                    "requestBody": {
                        "content": {
                            "multipart/form-data": {
                                "schema": {
                                    "$ref": "#/components/schemas/Body_create_file_files__post"
                                }
                            }

    if operation_id in operation_ids:
        message = (
            f"Duplicate Operation ID {operation_id} for function "
            + f"{route.endpoint.__name__}"
        )
        file_name = getattr(route.endpoint, "__globals__", {}).get("__file__")
        if file_name:
            message += f" at {file_name}"
        warnings.warn(message, stacklevel=1)
    operation_ids.add(operation_id)

```
.
├── app
│   ├── __init__.py
│   └── main.py
```

📁 `main.py` 👆 ✔️ 👆 **FastAPI** 📱:


```Python
{!../../../docs_src/app_testing/main.py!}
```

### 🔬 📁

⤴️ 👆 💪 ✔️ 📁 `test_main.py` ⏮️ 👆 💯. ⚫️ 💪 🖖 🔛 🎏 🐍 📦 (🎏 📁 ⏮️ `__init__.py` 📁):

``` hl_lines="5"
.
├── app
│   ├── __init__.py
│   ├── main.py
│   └── test_main.py
```