normalize_max_ranks
===================

.. py:function:: t3toolbox.backend.ranks.normalize_max_ranks(spec, length)

   .. code-block:: python

      def normalize_max_ranks(
              spec,            # None | int | Sequence[int or None]
              length: int,     # d for Tucker ranks, d+1 for TT ranks
      ) -> typ.Tuple:          # length-`length` tuple of (int or None); None entry = no cap at that position


   Normalize a max-rank specification to a per-position tuple.

   ``None`` -> no cap anywhere; a scalar caps every position uniformly; a sequence is per-position
   (length-checked). Shared by :py:func:`t3svd` and the elementwise-multiply (``t3m``) backends so a
   scalar like ``max_tt_ranks=4`` works the same everywhere.