stk.U
=====

.. currentmodule:: stk

.. autoclass:: U
   :members:
   :inherited-members:
   :undoc-members:
   :show-inheritance:

   
   
   .. rubric:: Methods

   .. autosummary::
      :nosignatures:
   
      ~U.clone
      ~U.get_atomic_number
      ~U.get_charge
      ~U.get_id
      ~U.with_id