#########################
Definition of Basic Types
#########################

Here we define the baisc types of a sphinx-needs metamodel.

.. need:: type group
   :id: SN_TYPEGROUP


.. need:: Type
   :id: SN_TYPE
   :sn_links: optinal, mandatory, groups
   :sn_attributes: directive,
                #title,
                prefix,
                color,
                #style

   A Sphinx-Needs metamodel has to define the types it wants to be used.

   https://sphinx-needs.readthedocs.io/en/latest/configuration.html#needs-types



.. need:: Extra Option
   :id: SN_OPTION
   :sn_attributes: name,
                description,
                schema

   https://sphinx-needs.readthedocs.io/en/latest/configuration.html#needs-extra-options


.. need:: Extra Link
   :id: SN_LINK
   :sn_attributes: option,
                incoming,
                outgoing,
                copy,
                allow_dead_links,
                #style,
                style_part,
                style_start,
                style_end,
                schema

   https://sphinx-needs.readthedocs.io/en/latest/configuration.html#needs-extra-links


.. need:: sn_association
   :id: SN_ASSOCIATION
   :sn_links: targets, link