from enum import Enum

class DiskLayoutType(Enum):
    Default = 'default_layout'

    def display_msg(self) -> str:
        match self:
            case DiskLayoutType.Default:
                return 'Use a best-effort default partition layout'

print(DiskLayoutType.Default.display_msg())  # Expected a callable, got `Literal[DiskLayoutType.display_msg]` [not-callable]