We have control over the dataframe output within Pandas: https://pandas.pydata.org/docs/user_guide/style.html

When left unstyled, Pandas tries to print the dataframe directly into the cell values. We should have a custom rendering that changes this to be some simple representative value, like: <NestedFrame>. Optionally we could try to give this some more descriptive metadata, but I worry about the overhead of calculating such information if the user doesn't need it. e.g. <NestedFrame (length=350)>