Attribute Macro switchboard_solana::program_id::zero_copy

#[zero_copy]

A data structure that can be used as an internal field for a zero copy deserialized account, i.e., a struct marked with #[account(zero_copy)].

#[zero_copy] is just a convenient alias for

#[derive(Copy, Clone)]
#[derive(bytemuck::Zeroable)]
#[derive(bytemuck::Pod)]
#[repr(C)]
struct MyStruct {...}