Function graphene_box2d_init_from_points 

pub unsafe extern "C" fn graphene_box2d_init_from_points(
    box_: *mut graphene_box2d_t,
    n_points: c_uint,
    points: *const graphene_point_t,
) -> *mut graphene_box2d_t

Available on crate feature v1_12 only.