Header objects
==============

.. autoclass:: rustfits.FITSHeader
   :members:
   :special-members: __len__, __iter__, __getitem__, __setitem__,
                     __delitem__, __contains__

.. autoclass:: rustfits.FITSHeaderEdit
   :members:
   :special-members: __enter__, __exit__, __getitem__, __setitem__,
                     __delitem__, __contains__

.. autofunction:: rustfits.is_protected_key