Is nested dataclass supported?

[sleepwalker2017]

from argparse_dataclass import dataclass
from argparse_dataclass import ArgumentParser

@dataclass
class SubOption:
    a: int = 1
    b: int = 2

@dataclass
class Options:
    x: int = 42
    y: bool = False
    sub: SubOption = None

parser = ArgumentParser(Options)
x = parser.parse_args(['--sub', '1'])
print(x)

for example, how can I parse args to get a value for sub?

[mivade]

This example doesn't make much sense to me. What attribute of SubOption should be getting set to 1?

[sleepwalker2017]

This example doesn't make much sense to me. What attribute of SubOption should be getting set to 1?

I mean, if I have a nested dataclass for example Options, how can I set the values in SubOptions.

python test.py --sub.a 2 --sub.b 1
Seems this usage is not supported. How can I set the value of sub.a?

[sleepwalker2017]

This example doesn't make much sense to me. What attribute of SubOption should be getting set to 1?

Let me say it more clearly, in the following example, how can I set 'logging' to False?