SharedGeometry.inner
====================

.. py:method:: t3toolbox.shared_geometry.SharedGeometry.inner(t1, t2)

   .. code-block:: python

      def inner(self, t1: t3m.T3Tangent, t2: t3m.T3Tangent):


   The base geometry's inner product -- the tied subspace is linear, so the restricted
   metric is the metric (never reweighted by sharing).