Std.Args.usage

fn

This is a callable function.

What it does

The usage text a program prints when asked, or when refusing.

Built from the same spec the parsing reads, so a program cannot document an

option it does not accept or accept one it does not document.

Read the signature

• The text after the name is the type checked by Pudu.
• Read arrows from left to right: inputs come first, and the final type is returned.
• & borrows a value for this call instead of moving or copying it.