Error detected while processing function ReflowTable:
line 7:
Traceback (most recent call last):
File "<string>", line 3, in <module>
File "<string>", line 279, in reflow_table
File "<string>", line 194, in get_column_widths_from_border_spec
RuntimeError: Cannot reflow this table. Top table border not found.
Running the example gives me the following error: