pub unsafe extern "C" fn graphene_plane_init_from_points(
p: *mut graphene_plane_t,
a: *const graphene_point3d_t,
b: *const graphene_point3d_t,
c: *const graphene_point3d_t,
) -> *mut graphene_plane_t
pub unsafe extern "C" fn graphene_plane_init_from_points(
p: *mut graphene_plane_t,
a: *const graphene_point3d_t,
b: *const graphene_point3d_t,
c: *const graphene_point3d_t,
) -> *mut graphene_plane_t