Macro tpm_struct

macro_rules! tpm_struct {
    (
        $(#[$meta:meta])*
        $name:ident,
        $cc:expr,
        $no_sessions:expr,
        $with_sessions:expr,
        $handles:expr,
        {
            $(pub $field_name:ident: $field_type:ty),*
            $(,)?
        }
    ) => { ... };
    (
        $(#[$meta:meta])*
        $vis:vis struct $name:ident {
            $(pub $field_name:ident: $field_type:ty),*
            $(,)?
        }
    ) => { ... };
}