pub unsafe extern "C" fn manifold_refine_to_length(
mem: *mut c_void,
m: *mut ManifoldManifold,
length: f64,
) -> *mut ManifoldManifold
pub unsafe extern "C" fn manifold_refine_to_length(
mem: *mut c_void,
m: *mut ManifoldManifold,
length: f64,
) -> *mut ManifoldManifold