A question about the generated prisma API, think a datamodel type Card The generated API is

createCard(data: CardCreateInput!): Card!
updateCard(data: CardUpdateInput!, where: CardWhereUniqueInput!): Card
deleteCard(where: CardWhereUniqueInput!): Card

Update and Delete return optional

Card

but create returns

Card!

- why so? what if there is an error while created? What would be the content of data part of response, since it cannot be null?