How do I create an optional bool flag?

[VictorioBerra]

I am using nullable reference types if that matters.

I want a flag called --dry-run.

The following gives an error:

[Description("Do not provision or modify anything.")]
[CommandOption("-d|--dry-run [OPTIONAL_VALUE]")]
public bool DryRun { get; init; }

Error: The option 'd' has an optional value but does not implement IFlagValue.

The user should not be forced to provide --dry-run, it should default to false.

[VictorioBerra]

My understanding of this is now cleared up via #270 (reply in thread)

In my example above, I can remove [OPTIONAL_VALUE] as [CommandOption] are all optional technically. This is not fully desired, but I at least understand the issue now.