lenskit.data.schema.ColumnSpec
==============================

.. py:class:: lenskit.data.schema.ColumnSpec
   

   Bases: :py:obj:`pydantic.BaseModel`


   .. py:attribute:: layout
      :type:  AttrLayout

      The attribute layout (whether and how multiple values are supported).


   .. py:attribute:: vector_size
      :type:  int | None
      :value: None


      The dimensionality of the vector, for sparse and vector columns.