frames_equal_or_skip
====================

.. py:function:: t3toolbox.safety.frames_equal_or_skip(data1, data2)

   .. code-block:: python

      def frames_equal_or_skip(data1, data2):


   The convenience guard for "same frame": ``True`` when checks are inactive (unsafe / under a trace)
   or when the frames are numerically equal (jax-aware tolerance) -- so a call site reads::

       if not (b1 is b2 or safety.frames_equal_or_skip(b1.data, b2.data)):
           raise ValueError('tangents are in different tangent spaces')

   The ``b1 is b2`` identity is the O(1) fast path; this only runs (and only matters) when the objects
   differ but may still represent the same frame (the jit round-trip).