fix: types, so the linter won't show an error about mismatching types

docs_src/app_testing/app_b_an_py310/main.py

@@ -3,21 +3,22 @@ from typing import Annotated
 from fastapi import FastAPI, Header, HTTPException
 from pydantic import BaseModel
 
-fake_secret_token = "coneofsilence"
-
-fake_db = {
-    "foo": {"id": "foo", "title": "Foo", "description": "There goes my hero"},
-    "bar": {"id": "bar", "title": "Bar", "description": "The bartenders"},
-}
-
-app = FastAPI()
-
-
 class Item(BaseModel):
     id: str
     title: str
     description: str | None = None
 
+foo_item = Item(id="foo", title="Foo", description="There goes my hero")
+bar_item = Item(id="bar", title="Bar", description="The bartenders")
+
+fake_secret_token = "coneofsilence"
+
+fake_db: dict[str, Item] = {
+    "foo": foo_item,
+    "bar": bar_item,
+}
+
+app = FastAPI()
 
 @app.get("/items/{item_id}", response_model=Item)
 async def read_main(item_id: str, x_token: Annotated[str, Header()]):

docs_src/app_testing/app_b_an_py39/main.py

@@ -3,20 +3,24 @@ from typing import Annotated, Union
 from fastapi import FastAPI, Header, HTTPException
 from pydantic import BaseModel
 
+class Item(BaseModel):
+    id: str
+    title: str
+    description: Union[str, None] = None
+
+foo_item = Item(id="foo", title="Foo", description="There goes my hero")
+bar_item = Item(id="bar", title="Bar", description="The bartenders")
+
 fake_secret_token = "coneofsilence"
 
-fake_db = {
-    "foo": {"id": "foo", "title": "Foo", "description": "There goes my hero"},
-    "bar": {"id": "bar", "title": "Bar", "description": "The bartenders"},
+fake_db: dict[str, Item] = {
+    "foo": foo_item,
+    "bar": bar_item,
 }
 
 app = FastAPI()
 
 
-class Item(BaseModel):
-    id: str
-    title: str
-    description: Union[str, None] = None
 
 
 @app.get("/items/{item_id}", response_model=Item)

docs_src/app_testing/app_b_py310/main.py

@@ -1,21 +1,22 @@
 from fastapi import FastAPI, Header, HTTPException
 from pydantic import BaseModel
 
-fake_secret_token = "coneofsilence"
-
-fake_db = {
-    "foo": {"id": "foo", "title": "Foo", "description": "There goes my hero"},
-    "bar": {"id": "bar", "title": "Bar", "description": "The bartenders"},
-}
-
-app = FastAPI()
-
-
 class Item(BaseModel):
     id: str
     title: str
     description: str | None = None
 
+foo_item = Item(id="foo", title="Foo", description="There goes my hero")
+bar_item = Item(id="bar", title="Bar", description="The bartenders")
+
+fake_secret_token = "coneofsilence"
+
+fake_db: dict[str, Item] = {
+    "foo": foo_item,
+    "bar": bar_item,
+}
+
+app = FastAPI()
 
 @app.get("/items/{item_id}", response_model=Item)
 async def read_main(item_id: str, x_token: str = Header()):

docs_src/app_testing/app_b_py39/main.py

@@ -3,21 +3,22 @@ from typing import Union
 from fastapi import FastAPI, Header, HTTPException
 from pydantic import BaseModel
 
-fake_secret_token = "coneofsilence"
-
-fake_db = {
-    "foo": {"id": "foo", "title": "Foo", "description": "There goes my hero"},
-    "bar": {"id": "bar", "title": "Bar", "description": "The bartenders"},
-}
-
-app = FastAPI()
-
-
 class Item(BaseModel):
     id: str
     title: str
     description: Union[str, None] = None
 
+foo_item = Item(id="foo", title="Foo", description="There goes my hero")
+bar_item = Item(id="bar", title="Bar", description="The bartenders")
+
+fake_secret_token = "coneofsilence"
+
+fake_db: dict[str, Item] = {
+    "foo": foo_item,
+    "bar": bar_item,
+}
+
+app = FastAPI()
 
 @app.get("/items/{item_id}", response_model=Item)
 async def read_main(item_id: str, x_token: str = Header()):