[tool.mypy]
plugins = ["pydantic.mypy"]
strict = true

[[tool.mypy.overrides]]
module = "fastapi.concurrency"
warn_unused_ignores = false
ignore_missing_imports = true

[[tool.mypy.overrides]]
module = "fastapi.tests.*"
ignore_missing_imports = true
check_untyped_defs = true

[[tool.mypy.overrides]]
module = "docs_src.*"
disallow_incomplete_defs = false
disallow_untyped_defs = false

            "order_by": "updated_at",
            "tags": ["tag1", "tag2"],
            "tool": "plumbus",
        },
    )
    assert response.status_code == 422
    assert response.json() == snapshot(
        {
            "detail": [
                {
                    "type": "extra_forbidden",
                    "loc": ["query", "tool"],
                    "msg": "Extra inputs are not permitted",

    response = client.get(
        "/items/", headers=[("save-data", "true"), ("tool", "plumbus")]
    )
    assert response.status_code == 422, response.text
    assert response.json() == snapshot(
        {
            "detail": [
                {
                    "type": "extra_forbidden",
                    "loc": ["header", "tool"],
                    "msg": "Extra inputs are not permitted",

                    },
                }
            ]
        }
    )


def test_header_param_model_extra(client: TestClient):
    response = client.get(
        "/items/", headers=[("save-data", "true"), ("tool", "plumbus")]
    )
    assert response.status_code == 200, response.text
    assert response.json() == snapshot(
        {
            "host": "testserver",
            "save_data": True,

    response = client.get(
        "/items/",
        params={
            "limit": 10,
            "offset": 5,
            "order_by": "updated_at",
            "tags": ["tag1", "tag2"],
            "tool": "plumbus",
        },
    )
    assert response.status_code == 200
    assert response.json() == {
        "limit": 10,
        "offset": 5,
        "order_by": "updated_at",

                }
            ]
        }
    )


def test_header_param_model_extra(client: TestClient):
    response = client.get(
        "/items/", headers=[("save_data", "true"), ("tool", "plumbus")]
    )
    assert response.status_code == 200, response.text
    assert response.json() == snapshot(
        {
            "host": "testserver",
            "save_data": True,

One of the **biggest benefits** is that now you can create `Annotated` dependencies that are then shared by multiple *path operation functions*, this will allow you to **reduce** a lot of **code duplication** in your codebase, while keeping all the support from editors and tools.

For example, you could have code like this: