Helper `tools/widget_documentation.py` script fails

[TomJGooding]

Traceback (most recent call last):
  File "/home/tom/Projects/textual/tools/widget_documentation.py", line 79, in <module>
    main()
  File "/home/tom/Projects/textual/tools/widget_documentation.py", line 73, in main
    print_bindings(widget, bindings)
  File "/home/tom/Projects/textual/tools/widget_documentation.py", line 31, in print_bindings
    print(f"| {binding.key} | {binding.description} |")
               ^^^^^^^^^^^
AttributeError: 'tuple' object has no attribute 'key'

[github-actions]

We found the following entry in the FAQ which you may find helpful:

• How do I center a widget in a screen?

Feel free to close this issue if you found an answer in the FAQ. Otherwise, please give us a little time to review.

This is an automated reply, generated by FAQtory

[github-actions]

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