Has anyone been able to use a different standardization json?

[mpreiss9]

I've tried playing with the standardization json file but have had zero success. I replaced concept_mappings.json with one of my own. The good news is edgartools didn't crash. The bad news is that it seemingly had no effect. I don't see anything different in the output. What am I missing? Sample code, pretty basic:

        xbrl = filing.xbrl()
        statements = xbrl.statements
        #standardized_is = statements.income_statement(standard=True) # this approach doesn't run, despite what the docs say
        balance_sheet = statements.balance_sheet()
        print(balance_sheet)
        income_statement = statements.income_statement()
        print(income_statement)
        # Try this way
        bs_statement = xbrl.render_statement("BalanceSheet", standard=True)
        print(bs_statement)
        is_statement = xbrl.render_statement("IncomeStatement", standard=True)
        print(is_statement)