Update components/dash-table/tests/selenium/conftest.py

Co-authored-by: Alex Johnson <alex@plot.ly>

Author: graingert-coef

components/dash-table/tests/selenium/conftest.py

@@ -11,6 +11,12 @@
 from selenium.webdriver.support.wait import WebDriverWait
 
 
+# @preconditions decorator, copied from the preconditions PyPI package
+# https://pypi.org/project/preconditions/
+# https://github.com/nejucomo/preconditions
+# and modified to support Python 3.12
+
+
 class PreconditionError(TypeError):
     pass