pub trait CommandLineParserTrait: CommandLineParserTraitConst {
fn as_raw_mut_CommandLineParser(&mut self) -> *mut c_void;
fn about(&mut self, message: &str) -> Result<()> { ... }
}
pub trait CommandLineParserTrait: CommandLineParserTraitConst {
fn as_raw_mut_CommandLineParser(&mut self) -> *mut c_void;
fn about(&mut self, message: &str) -> Result<()> { ... }
}