solana-program-examples/basics/checking-accounts/steel/api/src/instruction.rs

use steel::*;

#[repr(u8)]
#[derive(Clone, Copy, Debug, Eq, PartialEq, TryFromPrimitive)]
pub enum SteelInstruction {
    CheckAccounts = 0,
}

#[repr(C)]
#[derive(Clone, Copy, Debug, Pod, Zeroable)]
pub struct CheckAccounts {}

instruction!(SteelInstruction, CheckAccounts);