Macro builder_setter_into 

macro_rules! builder_setter_into {
    ($field:ident, $type:ty) => { ... };
    ($field:ident, $type:ty, $doc:expr) => { ... };
}

Implement a builder pattern setter method that takes impl Into.

Example

impl Config {
    mabi_core::builder_setter_into!(name, String);
}

let config = Config::default().name("test");