ak.numba.layoutbuilder.Union
============================

Defined in `awkward.numba.layoutbuilder <https://github.com/scikit-hep/awkward/blob/08439425ed1a9162f8c0eb6ee8d33df375616b71/src/awkward/numba/layoutbuilder.py>`__ on `line 782 <https://github.com/scikit-hep/awkward/blob/08439425ed1a9162f8c0eb6ee8d33df375616b71/src/awkward/numba/layoutbuilder.py#L782>`__.

.. py:class:: ak.numba.layoutbuilder.Union(tags_dtype, index_dtype, contents, *, parameters=None, initial=1024, resize=8.0)



   .. py:attribute:: _tags


   .. py:attribute:: _index


   .. py:attribute:: _contents


   .. py:property:: tags


   .. py:property:: index


   .. py:property:: contents


   .. py:property:: form


   .. py:method:: __repr__()


   .. py:method:: numbatype()


   .. py:method:: append_content(tag)


   .. py:method:: clear()


   .. py:method:: __len__()


   .. py:method:: is_valid(error: str)


   .. py:method:: snapshot() -> awkward.contents.Content