## "호출 가능한" 인스턴스

Python에는 클래스의 인스턴스를 "호출 가능"하게 만드는 방법이 있습니다.

클래스 자체(이미 호출 가능함)가 아니라 해당 클래스의 인스턴스에 대해 호출 가능하게 하는 것입니다.

이를 위해 `__call__` 메서드를 선언합니다:

{* ../../docs_src/dependencies/tutorial011_an_py39.py hl[12] *}

이 경우, **FastAPI**는 추가 매개변수와 하위 의존성을 확인하기 위해 `__call__`을 사용하게 되며,
나중에 *경로 연산 함수*에서 매개변수에 값을 전달할 때 이를 호출하게 됩니다.

## 인스턴스 매개변수화하기

이제 `__init__`을 사용하여 의존성을 "매개변수화"할 수 있는 인스턴스의 매개변수를 선언할 수 있습니다:

}} subPath: "{{ .Values.persistence.subPath }}" {{- end }} {{- if .Values.extraSecret }} - name: extra-secret mountPath: "/tmp/minio-config-env" {{- end }} {{- include "minio.tlsKeysVolumeMount" . | indent 12 }} {{- if .Values.extraVolumeMounts }} {{- toYaml .Values.extraVolumeMounts | nindent 12 }} {{- end }} ports: - name: {{ $scheme }} containerPort: {{ .Values.minioAPIPort }} - name: {{ $scheme }}-console containerPort: {{ .Values.minioConsolePort }} env: - name: MINIO_ROOT_USER valueFrom: secretKeyRef:...

}} subPath: "{{ .Values.persistence.subPath }}" {{- end }} {{- if .Values.extraSecret }} - name: extra-secret mountPath: "/tmp/minio-config-env" {{- end }} {{- include "minio.tlsKeysVolumeMount" . | indent 12 }} {{- if .Values.extraVolumeMounts }} {{- toYaml .Values.extraVolumeMounts | nindent 12 }} {{- end }} ports: - name: {{ $scheme }} containerPort: {{ .Values.minioAPIPort }} - name: {{ $scheme }}-console containerPort: {{ .Values.minioConsolePort }} env: - name: MINIO_ROOT_USER valueFrom: secretKeyRef:...

}} subPath: "{{ .Values.persistence.subPath }}" {{- end }} {{- if .Values.extraSecret }} - name: extra-secret mountPath: "/tmp/minio-config-env" {{- end }} {{- include "minio.tlsKeysVolumeMount" . | indent 12 }} {{- if .Values.extraVolumeMounts }} {{- toYaml .Values.extraVolumeMounts | nindent 12 }} {{- end }} ports: - name: {{ $scheme }} containerPort: {{ .Values.minioAPIPort }} - name: {{ $scheme }}-console containerPort: {{ .Values.minioConsolePort }} env: - name: MINIO_ROOT_USER valueFrom: secretKeyRef:...

      <version>0.1.14</version>
      <type>jar</type>
      <scope>compile</scope>
    </dependency>
    <dependency>
      <groupId>qdox</groupId>
      <artifactId>qdox</artifactId>
      <version>1.2</version>
      <type>jar</type>
      <scope>compile</scope>
    </dependency>
  </dependencies>

В предыдущей главе система безопасности (основанная на системе внедрения зависимостей) передавала *функции-обработчику пути* `token` типа `str`:

{* ../../docs_src/security/tutorial001_an_py39.py hl[12] *}

Но это всё ещё не слишком полезно.

Сделаем так, чтобы она возвращала текущего пользователя.

## Создать модель пользователя { #create-a-user-model }

Сначала создадим Pydantic-модель пользователя.

}} subPath: "{{ .Values.persistence.subPath }}" {{- end }} {{- if .Values.extraSecret }} - name: extra-secret mountPath: "/tmp/minio-config-env" {{- end }} {{- include "minio.tlsKeysVolumeMount" . | indent 12 }} {{- if .Values.extraVolumeMounts }} {{- toYaml .Values.extraVolumeMounts | nindent 12 }} {{- end }} ports: - name: {{ $scheme }} containerPort: {{ .Values.minioAPIPort }} - name: {{ $scheme }}-console containerPort: {{ .Values.minioConsolePort }} env: - name: MINIO_ROOT_USER valueFrom: secretKeyRef:...

}} subPath: "{{ .Values.persistence.subPath }}" {{- end }} {{- if .Values.extraSecret }} - name: extra-secret mountPath: "/tmp/minio-config-env" {{- end }} {{- include "minio.tlsKeysVolumeMount" . | indent 12 }} {{- if .Values.extraVolumeMounts }} {{- toYaml .Values.extraVolumeMounts | nindent 12 }} {{- end }} ports: - name: {{ $scheme }} containerPort: {{ .Values.minioAPIPort }} - name: {{ $scheme }}-console containerPort: {{ .Values.minioConsolePort }} env: - name: MINIO_ROOT_USER valueFrom: secretKeyRef:...

}} subPath: "{{ .Values.persistence.subPath }}" {{- end }} {{- if .Values.extraSecret }} - name: extra-secret mountPath: "/tmp/minio-config-env" {{- end }} {{- include "minio.tlsKeysVolumeMount" . | indent 12 }} {{- if .Values.extraVolumeMounts }} {{- toYaml .Values.extraVolumeMounts | nindent 12 }} {{- end }} ports: - name: {{ $scheme }} containerPort: {{ .Values.minioAPIPort }} - name: {{ $scheme }}-console containerPort: {{ .Values.minioConsolePort }} env: - name: MINIO_ROOT_USER valueFrom: secretKeyRef:...

}} subPath: "{{ .Values.persistence.subPath }}" {{- end }} {{- if .Values.extraSecret }} - name: extra-secret mountPath: "/tmp/minio-config-env" {{- end }} {{- include "minio.tlsKeysVolumeMount" . | indent 12 }} {{- if .Values.extraVolumeMounts }} {{- toYaml .Values.extraVolumeMounts | nindent 12 }} {{- end }} ports: - name: {{ $scheme }} containerPort: {{ .Values.minioAPIPort }} - name: {{ $scheme }}-console containerPort: {{ .Values.minioConsolePort }} env: - name: MINIO_ROOT_USER valueFrom: secretKeyRef:...