[Python] How can I make all attributes in a Python dataclass optional without rewriting each...

I have this data class:

@dataclass
class User:
id: str
name: str
pwd: str
picture: str
url: str
age: int
# many, many more attributes


Now, I have to make all of the attributes of my data class optional because of a change in the data I am receiving.

I know I can do something like this:

@dataclass
class User:
id: Optional[str] = None
name: Optional[str] = None
# and so on for the 25-30 attributes I have


But is there a more efficient way to accomplish this without having to manually write Optional[..] = None for every line?

For example, I used to get data like:

attributes = {"id": "18ut2", "pwd": "qwerty", "name": "John Doe", "picture": None, "age": None, "url": "www.example.com"}
user = User(**attributes)


Before, if the attribute was None, the key was not omitted. Unlike now, when a key is None, the entire key is omitted.

Example of current data:

attributes = {"id": "18ut2", "pwd": "qwerty", "name": "John Doe", "url": "www.example.com"} # No picture or age key anymore
user = User(**attributes) # Now throws an error


Error:

TypeError: User.__init__() missing 2 required positional arguments: 'picture' and 'age'


Note: I know overriding __init__ or using __init_subclass__, but those come with limitations, so I am looking for a solution that avoids that.

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