pub unsafe extern "C" fn manifold_transform(
mem: *mut c_void,
m: *mut ManifoldManifold,
x1: f64,
y1: f64,
z1: f64,
x2: f64,
y2: f64,
z2: f64,
x3: f64,
y3: f64,
z3: f64,
x4: f64,
y4: f64,
z4: f64,
) -> *mut ManifoldManifold