Add Doxygen stuff as it appears pybind macros require it.

docs/doxygen/doxyxml/__init__.py

@@ -0,0 +1,71 @@
+#
+# Copyright 2010 Free Software Foundation, Inc.
+#
+# This file was generated by gr_modtool, a tool from the GNU Radio framework
+# This file is a part of gr-air-modes
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+#
+"""
+Python interface to contents of doxygen xml documentation.
+
+Example use:
+See the contents of the example folder for the C++ and
+doxygen-generated xml used in this example.
+
+>>> # Parse the doxygen docs.
+>>> import os
+>>> this_dir = os.path.dirname(globals()['__file__'])
+>>> xml_path = this_dir + "/example/xml/"
+>>> di = DoxyIndex(xml_path)
+
+Get a list of all top-level objects.
+
+>>> print([mem.name() for mem in di.members()])
+[u'Aadvark', u'aadvarky_enough', u'main']
+
+Get all functions.
+
+>>> print([mem.name() for mem in di.in_category(DoxyFunction)])
+[u'aadvarky_enough', u'main']
+
+Check if an object is present.
+
+>>> di.has_member(u'Aadvark')
+True
+>>> di.has_member(u'Fish')
+False
+
+Get an item by name and check its properties.
+
+>>> aad = di.get_member(u'Aadvark')
+>>> print(aad.brief_description)
+Models the mammal Aadvark.
+>>> print(aad.detailed_description)
+Sadly the model is incomplete and cannot capture all aspects of an aadvark yet.
+<BLANKLINE>
+This line is uninformative and is only to test line breaks in the comments.
+>>> [mem.name() for mem in aad.members()]
+[u'aadvarkness', u'print', u'Aadvark', u'get_aadvarkness']
+>>> aad.get_member(u'print').brief_description
+u'Outputs the vital aadvark statistics.'
+
+"""
+
+from .doxyindex import DoxyIndex, DoxyFunction, DoxyParam, DoxyClass, DoxyFile, DoxyNamespace, DoxyGroup, DoxyFriend, DoxyOther
+
+def _test():
+    import os
+    this_dir = os.path.dirname(globals()['__file__'])
+    xml_path = this_dir + "/example/xml/"
+    di = DoxyIndex(xml_path)
+    # Get the Aadvark class
+    aad = di.get_member('Aadvark')
+    aad.brief_description
+    import doctest
+    return doctest.testmod()
+
+if __name__ == "__main__":
+    _test()
+