/*
* // Copyright (c) 2021 Feng Yang
* //
* // I am making my contributions/submissions to this project solely in my
* // personal capacity and am not conveying any rights to any intellectual
* // property of any third parties.
*/
use std::sync::{RwLock, Arc};
/// Abstract base class for 3-D fields.
pub trait Field3 {}
pub type Field3Ptr = Arc<RwLock<dyn Field3>>;