Trait magnus::scan_args::ScanArgsOpt
source · pub trait ScanArgsOpt: ScanArgsOpt { }Expand description
Trait implemented for types that can be retrieved as optional arguments by
scan_args.
This trait is implemented for (Option<T0>,), (Option<T0>, Option<T1>),
etc, through to a length of 9, where T0, T1, etc implement
TryConvert.
() also impliments this trait as a placeholder indicating no optional
arguments are required.