Macro intro 

macro_rules! intro {
    () => { ... };
    ($arg:expr) => { ... };
    ($($arg:tt)*) => { ... };
}

Intro message.

Write a message to start a prompt session.

Can take either a fmt string like format!, a type that implements std::fmt::Display, or nothing.

Examples

use may_clack::intro;

// empty
intro!();
// fmt string
intro!("fmt {:?}", "string");
// impl Display
intro!("text");
intro!(4);