Das bedeutet auch, dass, wenn sich etwas ändert, dies automatisch im Client-Code **reflektiert** wird. Und wenn Sie den Client **erstellen**, wird eine Fehlermeldung ausgegeben, wenn die verwendeten Daten **nicht übereinstimmen**.

Wenn Sie eine zweiminütige Auffrischung benötigen, wie man Python-Typen verwendet (auch wenn Sie FastAPI nicht benutzen), schauen Sie sich das kurze Tutorial an: [Einführung in Python-Typen](python-types.md).

Sie schreiben Standard-Python mit Typen:

```Python
from datetime import date

from pydantic import BaseModel

"etwas", "euer", "eure", "eurem", "euren", "eurer", "eures", "für", "gegen", "gewesen", "hab", "habe", "haben", "hat", "hatte", "hatten", "hier", "hin", "hinter", "ich", "mich", "mir", "ihr", "ihre", "ihrem", "ihren", "ihrer", "ihres", "euch", "im", "in", "indem", "ins", "ist", "jede", "jedem", "jeden", "jeder", "jedes", "jene", "jenem", "jenen", "jener", "jenes", "jetzt", "kann", "kein", "keine", "keinem", "keinen", "keiner", "keines", "können", "könnte", "machen", "man", "manche", "manchem", "manchen",...

"etwas", "euer", "eure", "eurem", "euren", "eurer", "eures", "für", "gegen", "gewesen", "hab", "habe", "haben", "hat", "hatte", "hatten", "hier", "hin", "hinter", "ich", "mich", "mir", "ihr", "ihre", "ihrem", "ihren", "ihrer", "ihres", "euch", "im", "in", "indem", "ins", "ist", "jede", "jedem", "jeden", "jeder", "jedes", "jene", "jenem", "jenen", "jener", "jenes", "jetzt", "kann", "kein", "keine", "keinem", "keinen", "keiner", "keines", "können", "könnte", "machen", "man", "manche", "manchem", "manchen",...

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