Macro extern_libpython_items 

macro_rules! extern_libpython_items {
    () => { ... };
    (
        $(#[$attrs:meta])*
        $vis:vis fn $name:ident($($args:tt)*) $(-> $ret:ty)?;
        $($rest:tt)*
    ) => { ... };
    (
        $(#[$attrs:meta])*
        $vis:vis static mut $name:ident: $ty:ty;
        $($rest:tt)*
    ) => { ... };
    (
        $(#[$attrs:meta])*
        $vis:vis static $name:ident: $ty:ty;
        $($rest:tt)*
    ) => { ... };
}