identifiers:
repository-code: 'https://github.com/tiangolo/fastapi'
url: 'https://fastapi.tiangolo.com'
abstract: >-
  FastAPI framework, high performance, easy to learn, fast to code,
  ready for production
keywords:
  - fastapi
  - pydantic
  - starlette

So, we get a Pydantic model from the data in another Pydantic model.

#### Unwrapping a `dict` and extra keywords

And then adding the extra keyword argument `hashed_password=hashed_password`, like in:

```Python
UserInDB(**user_in.dict(), hashed_password=hashed_password)
```

...ends up being like:

```Python
UserInDB(

    override val isInline: Boolean
        get() = withValidityAssertion { psi.hasModifier(KtTokens.INLINE_KEYWORD) || psi.property.hasModifier(KtTokens.INLINE_KEYWORD) }

    override val isOverride: Boolean
        get() = withValidityAssertion { psi.property.hasModifier(KtTokens.OVERRIDE_KEYWORD) }

    override val hasBody: Boolean
        get() = withValidityAssertion { psi.hasBody() }

    override val isInline: Boolean
        get() = withValidityAssertion { propertyPsi.hasModifier(KtTokens.OVERRIDE_KEYWORD) }

    override val isOverride: Boolean
        get() = withValidityAssertion { propertyPsi.hasModifier(KtTokens.OVERRIDE_KEYWORD) }

    override val hasBody: Boolean
        get() = withValidityAssertion { false }

    override val parameter: KtValueParameterSymbol by cached {

        get() = withValidityAssertion { psi.hasModifier(KtTokens.SUSPEND_KEYWORD) }

    override val isOperator: Boolean
        get() = withValidityAssertion { psi.hasModifier(KtTokens.OPERATOR_KEYWORD) }

    override val isExternal: Boolean
        get() = withValidityAssertion { psi.hasModifier(KtTokens.EXTERNAL_KEYWORD) }

    override val isInline: Boolean

    override val isInline: Boolean
        get() = withValidityAssertion { propertyPsi.hasModifier(KtTokens.OVERRIDE_KEYWORD) }

    override val isOverride: Boolean
        get() = withValidityAssertion { propertyPsi.hasModifier(KtTokens.OVERRIDE_KEYWORD) }

    override val hasBody: Boolean
        get() = withValidityAssertion { false }

    override val valueParameters: List<KtValueParameterSymbol>

Pythonにおける「**呼び出し可能**」とは、Pythonが関数のように「呼び出す」ことができるものを指します。

そのため、`something`オブジェクト（関数ではないかもしれませんが）を持っていて、それを次のように「呼び出す」（実行する）ことができるとします:

```Python
something()
```

または

```Python
something(some_argument, some_keyword_argument="foo")
```

これを「呼び出し可能」なものと呼びます。

## 依存関係としてのクラス

Pythonのクラスのインスタンスを作成する際に、同じ構文を使用していることに気づくかもしれません。

例えば:

```Python
class Cat:
    def __init__(self, name: str):

    copyright {
        useDefault = GradleCopyright.profileName
        profiles {
            create(GradleCopyright.profileName) {
                notice = GradleCopyright.notice
                keyword = GradleCopyright.keyword
            }
        }
    }
}

fun ProjectSettings.configureRunConfigurations() {
    runConfigurations {
        create<Remote>("Remote debug port 5005") {

    override val isInline: Boolean
        get() = withValidityAssertion { psi.hasModifier(KtTokens.INLINE_KEYWORD) || psi.property.hasModifier(KtTokens.INLINE_KEYWORD) }

    override val isOverride: Boolean
        get() = withValidityAssertion { psi.property.hasModifier(KtTokens.OVERRIDE_KEYWORD) }

    override val hasBody: Boolean
        get() = withValidityAssertion { psi.hasBody() }

    }

    override val isLateInit: Boolean
        get() = withValidityAssertion { psi.hasModifier(KtTokens.LATEINIT_KEYWORD) }

    override val isConst: Boolean
        get() = withValidityAssertion { psi.hasModifier(KtTokens.CONST_KEYWORD) }

    override val hasGetter: Boolean
        get() = withValidityAssertion { true }

    override val hasSetter: Boolean