refactoring and typing in progress
diff --git a/requirements_extra.txt b/requirements_extra.txt
new file mode 100644
index 0000000..a2a3828
--- /dev/null
+++ b/requirements_extra.txt
@@ -0,0 +1,2 @@
+oktest
+iso8601==0.1.10
\ No newline at end of file