Macro beve_object 

macro_rules! beve_object {
    (write_only :: $($t:tt)*) => { ... };
    (read_only $($t:tt)*) => { ... };
    (write_only $($t:tt)*) => { ... };
    ($($t:tt)*) => { ... };
}

Declare a struct’s schema for BEVE alone.

The counterpart of json_object!. A struct with a borrowed &[u8] field needs this one: JSON has no way to hand back a run of bytes out of a document, so there is no JSON impl to generate.

#[derive(Default)]
struct Frame<'a> {
    id: u32,
    payload: &'a [u8],
}
structio::beve_object!(['a] Frame<'a> { id, payload });