Macro parse_prefix_args 

macro_rules! parse_prefix_args {
    ($ctx:expr, $msg:expr, $args:expr, $attachment_index:expr => $(
        $( #[$attr:ident] )?
        ( $($type:tt)* )
    ),* $(,)? ) => { ... };
}

Macro for parsing an argument string into multiple parameter types.

An invocation of this macro is generated by the crate::command macro, so you usually don’t need to use this macro directly.

assert_eq!(
    poise::parse_prefix_args!(
        &ctx, &msg,
        "one two three four", 0 => (String), (Option<u32>), #[rest] (String)
    ).await.unwrap(),
    (
        String::from("one"),
        None,
        String::from("two three four"),
    ),
);

assert_eq!(
    poise::parse_prefix_args!(
        &ctx, &msg,
        "1 2 3 4", 0 => (String), (Option<u32>), #[rest] (String)
    ).await.unwrap(),
    (
        String::from("1"),
        Some(2),
        String::from("3 4"),
    ),
);