@app.post("/items/", response_model=ResponseMessage, tags=["items"])
async def create_item(item: Item):
    return {"message": "Item received"}


@app.get("/items/", response_model=List[Item], tags=["items"])
async def get_items():
    return [
        {"name": "Plumbus", "price": 3},
        {"name": "Portal Gun", "price": 9001},
    ]


@app.post("/users/", response_model=ResponseMessage, tags=["users"])
async def create_user(user: User):

                            {"title": "Description", "type": "string"}
                        ),
                        "tax": {"title": "Tax", "type": "number", "default": 10.5},
                        "tags": {
                            "title": "Tags",
                            "type": "array",
                            "items": {"type": "string"},
                            "default": [],
                        },

    val request =
      Request.Builder()
        .url("https://square.com")
        .tag(Any::class, tag)
        .build()
    assertThat(request.tag<Any>()).isSameAs(tag)
    assertThat(request.tag(Any::class)).isSameAs(tag)
    assertThat(request.tag(String::class)).isNull()

    // Alternate access APIs also work.
    assertThat(request.tag(Any::class)).isSameAs(tag)
    assertThat(request.tag<Any>()).isSameAs(tag)

                            {"title": "Description", "type": "string"}
                        ),
                        "tax": {"title": "Tax", "type": "number", "default": 10.5},
                        "tags": {
                            "title": "Tags",
                            "type": "array",
                            "items": {"type": "string"},
                            "default": [],
                        },

    name: str
    description: Union[str, None] = None
    price: float
    tax: float = 10.5
    tags: list[str] = []


items = {
    "foo": {"name": "Foo", "price": 50.2},
    "bar": {"name": "Bar", "description": "The bartenders", "price": 62, "tax": 20.2},
    "baz": {"name": "Baz", "description": None, "price": 50.2, "tax": 10.5, "tags": []},
}


@app.get("/items/{item_id}", response_model=Item, response_model_exclude_unset=True)

							Name:   "istio-revision-tag-wrong",
							Labels: map[string]string{label.IoIstioTag.Name: "wrong"},
						},
					},
				},
			},
			namespaces:       corev1.NamespaceList{},
			outputMatches:    []string{},
			skipConfirmation: true,
			error:            "cannot remove tag \"sample\"",
		},
		{
			name: "TestDeleteTagWithDependentNamespace",
			tag:  "match",

              {
               "tag": "istio.canonical_revision",
               "literal": {
                "value": "v1"
               }
              },
              {
               "tag": "istio.canonical_service",
               "literal": {
                "value": "httpbin"
               }
              },
              {
               "tag": "istio.mesh_id",
               "literal": {

servers:
  - url: http://localhost:8080/api/v1
tags:
  - name: search
    description: Search operations
  - name: popularword
    description: Popular word operations
  - name: monitor
    description: Monitoring operations
  - name: suggest
    description: Suggest operations
  - name: favorite
    description: Favorite operations
paths:
  /documents:
    get:
      tags:
        - search

from dataclasses import dataclass, field
from typing import List, Union

from fastapi import FastAPI


@dataclass
class Item:
    name: str
    price: float
    tags: List[str] = field(default_factory=list)
    description: Union[str, None] = None
    tax: Union[float, None] = None


app = FastAPI()


@app.get("/items/next", response_model=Item)
async def read_next_item():
    return {

## Documentation Tags - OpenAPI

To add tags to your *path operations*, and group them in the docs UI, read the docs for [Tutorial - Path Operation Configurations - Tags](../tutorial/path-operation-configuration.md#tags){.internal-link target=_blank}.

## Documentation Summary and Description - OpenAPI