add type system inheritance diagram to docs

docs/source/api/types.rst

@@ -17,6 +17,10 @@ Basic Functions
 Data Type Class Hierarchy
 -------------------------
 
+.. inheritance-diagram:: pystencils.types.meta.PsType pystencils.types.types
+    :top-classes: pystencils.types.PsType
+    :parts: 1
+
 .. autoclass:: pystencils.types.PsType
     :members:
 

docs/source/conf.py

@@ -29,6 +29,7 @@ extensions = [
     "sphinx.ext.intersphinx",
     "sphinx.ext.mathjax",
     "sphinx.ext.napoleon",
+    "sphinx.ext.inheritance_diagram",
     "nbsphinx",
     "sphinxcontrib.bibtex",
     "sphinx_autodoc_typehints",
@@ -47,6 +48,12 @@ intersphinx_mapping = {
     "sympy": ("https://docs.sympy.org/latest/", None),
 }
 
+# -- Options for inheritance diagrams-----------------------------------------
+
+inheritance_graph_attrs = {
+    "bgcolor": "white",
+}
+
 # -- Options for HTML output -------------------------------------------------
 
 html_theme = "furo"