.. _vertex:

Vertex
====================
| Format: Element
| Elements: :ref:`diagram`
| Implementation: :py:class:`pyfeyn2.feynmandiagram.Vertex`


.. code-block:: xml

	<vertex>
		<id>vertex0</id>
	</vertex>

Required elements: 

.. toctree::
   :glob:
   :maxdepth: 3

   id.rst