get rid of some pyright diagnostics

spiffworkflow-backend/pyproject.toml

@@ -156,6 +156,17 @@ implicit_reexport = true
 namespace_packages = true
 explicit_package_bases = false
 
+[tool.pyright]
+reportMissingModuleSource = false
+reportMissingImports = false
+reportUnusedVariable = false
+typeCheckingMode = "off"
+reportUnusedFunction = false
+reportUnusedClass = false
+# it appears that: Pyright: "hey" is not accessed
+# may relate to: https://github.com/microsoft/pyright/discussions/3929#discussioncomment-5434231
+# "Those are not warnings" and cannot be turned off in the same way.
+
 [tool.ruff]
 select = [
   "B",   # flake8-bugbear