Macro solana_ledger::shred::dispatch

macro_rules! dispatch {
    ($vis:vis fn $name:ident(&self $(, $arg:ident : $ty:ty)?) $(-> $out:ty)?) => { ... };
    ($vis:vis fn $name:ident(self $(, $arg:ident : $ty:ty)?) $(-> $out:ty)?) => { ... };
    ($vis:vis fn $name:ident(&mut self $(, $arg:ident : $ty:ty)?) $(-> $out:ty)?) => { ... };
}