The module `items` will have a variable `router` (`items.router`). This is the same one we created in the file `app/routers/items.py`, it's an `APIRouter` object.

And then we do the same for the module `users`.

We could also import them like:

```Python
from app.routers import items, users
```

/// info

     */
    fun alternateService(
      streamId: Int,
      origin: String,
      protocol: ByteString,
      host: String,
      port: Int,
      maxAge: Long,
    )
  }

  companion object {
    val logger: Logger = Logger.getLogger(Http2::class.java.name)

    @Throws(IOException::class)
    fun lengthWithoutPadding(
      length: Int,
      flags: Int,
      padding: Int,
    ): Int {

import com.google.common.annotations.J2ktIncompatible;
import java.util.Iterator;
import java.util.stream.DoubleStream;
import java.util.stream.IntStream;
import java.util.stream.LongStream;

/**
 * A mutable object which accumulates double values and tracks some basic statistics over all the
 * values added so far. The values may be added singly or in groups. This class is not thread safe.
 *
 * @author Pete Gillin

        this.a = a;
        this.b = b;
      }

      @Override
      public int hashCode() {
        return a;
      }

      @Override
      public boolean equals(@Nullable Object obj) {
        return obj instanceof TypeWithDuplicates && ((TypeWithDuplicates) obj).a == a;
      }

      boolean fullEquals(@Nullable TypeWithDuplicates other) {

/// tip | Подсказка

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful

pkg go/ast, func IsGenerated(*File) bool #28089
pkg go/ast, func NewPackage //deprecated #52463
pkg go/ast, type File struct, GoVersion string #59033
pkg go/ast, type Importer //deprecated #52463
pkg go/ast, type Object //deprecated #52463
pkg go/ast, type Package //deprecated #52463
pkg go/ast, type Scope //deprecated #52463
pkg go/build/constraint, func GoVersion(Expr) string #59033
pkg go/build, type Directive struct #56986

そして、そのデータを出力すると、たとえソースに重複があったとしても、固有の項目のセットとして出力されます。

また、それに応じて注釈をつけたり、文書化したりします。

## ネストされたモデル

Pydanticモデルの各属性には型があります。

しかし、その型はそれ自体が別のPydanticモデルである可能性があります。

そのため、特定の属性名、型、バリデーションを指定して、深くネストしたJSON`object`を宣言することができます。

すべては、任意のネストにされています。

### サブモデルの定義

例えば、`Image`モデルを定義することができます:

{* ../../docs_src/body_nested_models/tutorial004.py hl[9,10,11] *}

### サブモデルを型として使用

そして、それを属性の型として使用することができます:

:"\f419"}.fa-node-js:before{content:"\f3d3"}.fa-not-equal:before{content:"\f53e"}.fa-notes-medical:before{content:"\f481"}.fa-npm:before{content:"\f3d4"}.fa-ns8:before{content:"\f3d5"}.fa-nutritionix:before{content:"\f3d6"}.fa-object-group:before{content:"\f247"}.fa-object-ungroup:before{content:"\f248"}.fa-odnoklassniki:before{content:"\f263"}.fa-odnoklassniki-square:before{content:"\f264"}.fa-oil-can:before{content:"\f613"}.fa-old-republic:before{content:"\f510"}.fa-om:before{content:"\f679"}....

 *  Fix: Don't crash inspecting whether the host platform is JVM or Android. With 4.7.0 and 4.7.1 we
    had a crash `IllegalArgumentException: Not a Conscrypt trust manager` because we depended on
    initialization order of companion objects.


## Version 4.7.1

_2020-05-18_

 *  Fix: Pass the right arguments in the trust manager created for `addInsecureHost()`. Without the