async def create_item(item: Item):
    return item


@app.get("/items/", tags=["items"])
async def read_items():
    return [{"name": "Foo", "price": 42}]


@app.get("/users/", tags=["users"])
async def read_users():

        permissionList.add("2aaa");

        allowEmptyPermission.set(true);
        assertTrue(ldapManager.allowEmptyGroupAndRole(user));
        allowEmptyPermission.set(false);
        assertTrue(ldapManager.allowEmptyGroupAndRole(user));

        permissionList.clear();
        permissionList.add("Raaa");

        allowEmptyPermission.set(true);

 * provides methods for {@linkplain #startAsync() starting}, {@linkplain #stopAsync() stopping} and
 * {@linkplain #servicesByState inspecting} a collection of {@linkplain Service services}.
 * Additionally, users can monitor state transitions with the {@linkplain Listener listener}
 * mechanism.
 *
 * <p>While it is recommended that service lifecycles be managed via this class, state transitions

        valueMap.put("user", user.map(FessUserBean::getUserId).orElse("-"));
        valueMap.put("path", path);
        valueMap.put("execute", execute);
        log(valueMap);
    }

    public void permissionChanged(final OptionalThing<FessUserBean> user) {
        final Map<String, String> valueMap = new LinkedHashMap<>();
        valueMap.put("action", Action.UPDATE_PERMISSION.name());

                int index = auth.indexOf(':');
                String user = (index != -1) ? auth.substring(0, index) : auth;
                String password = (index != -1) ? auth.substring(index + 1) :
                        "";
                index = user.indexOf('\\');
                if (index == -1) index = user.indexOf('/');
                String domain = (index != -1) ? user.substring(0, index) :
                        defaultDomain;

        this.searchWord = value;
    }

    public String getUser() {
        checkSpecifiedProperty("user");
        return convertEmptyToNull(user);
    }

    public void setUser(String value) {
        registerModifiedProperty("user");
        this.user = value;
    }

    public String getUserAgent() {
        checkSpecifiedProperty("userAgent");

│   │   ├── items.py     # 「items」子模块，例如 import app.routers.items
│   │   └── users.py     # 「users」子模块，例如 import app.routers.users
│   └── internal         # 「internal」是一个「Python 子包」
│       ├── __init__.py  # 使「internal」成为一个「Python 子包」
│       └── admin.py     # 「admin」子模块，例如 import app.internal.admin
```

## `APIRouter`

假设专门用于处理用户逻辑的文件是位于 `/app/routers/users.py` 的子模块。

你希望将与用户相关的*路径操作*与其他代码分开，以使其井井有条。

And the next sections assume you already read it, and assume that you know those main ideas.

## External Courses

ontent:"\f502"}.fa-user-md:before{content:"\f0f0"}.fa-user-minus:before{content:"\f503"}.fa-user-ninja:before{content:"\f504"}.fa-user-nurse:before{content:"\f82f"}.fa-user-plus:before{content:"\f234"}.fa-user-secret:before{content:"\f21b"}.fa-user-shield:before{content:"\f505"}.fa-user-slash:before{content:"\f506"}.fa-user-tag:before{content:"\f507"}.fa-user-tie:before{content:"\f508"}.fa-user-times:before{content:"\f235"}.fa-users:before{content:"\f0c0"}.fa-users-cog:before{content:"\f509"}.fa...

    /**
     * The goal name for the Mojo, that users will reference from the command line to execute the Mojo directly, or
     * inside a POM in order to provide Mojo-specific configuration.
     */
    private String goal;

    /**
     * Defines a default phase to bind a mojo execution to if the user does not explicitly set a phase in the POM.