Function pio_package_materialize_operating_point 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn pio_package_materialize_operating_point(
    pkg: *const PioPackage,
    index: i64,
    errbuf: *mut c_char,
    errlen: usize,
) -> *mut PioPackage

Materialize one operating point into a new static package.

The returned handle owns a package with the selected updates applied and no operating point series. Free it with pio_package_free.