Primitive bosonic operators
===========================

Primitive operators accept either a flat mode index or degree-of-freedom
coordinates. Each instance exposes ``indices``, ``mode``, ``modes``, ``dag``,
and ``string``.

Annihilation
------------

.. autoclass:: edinpy.boson.Annihilation
   :members: dag

Creation
--------

.. autoclass:: edinpy.boson.Creation
   :members: dag

Number
------

.. autoclass:: edinpy.boson.Number
   :members: dag