Function graphene_box2d_init_from_vectors 

pub unsafe extern "C" fn graphene_box2d_init_from_vectors(
    box_: *mut graphene_box2d_t,
    n_vectors: c_uint,
    vectors: *const graphene_vec2_t,
) -> *mut graphene_box2d_t

Available on crate feature v1_12 only.