Macro name_type 

macro_rules! name_type {
    (
        $(#[$meta:meta])*
        $vis:vis struct $Name:ident {
            kind: $kind:literal
            $(, max_len: $max_len:expr )?
            $(,)?
        }
    ) => { ... };
}

Declare a validated name newtype that implements Name.

Used across the crate wherever a validated ASCII-identifier newtype is needed (parameter names, element names, label keys, port names, …). Each invocation produces a newtype with:

• new, as_str, into_inner
• Display, Debug, PartialEq/Eq/Hash/Ord/PartialOrd
• serde Serialize / Deserialize as a transparent string
• FromStr, TryFrom<&str>, TryFrom<String>