Unkown Function returning #NAME?

Hello,

I was just using some lines of code like this one: wks.update_acell('A1', formula), and had worked fine. but now I'm using a different formula =googlefinance("petr3"; "price"; DIATRABALHO(HOJE();-10);HOJE()).
But the Sheet returnin the following error: "unkown function DIATRABALHO", but that function it's correct, even when I put the same formula directly into the sheet, it work fine.

What can I do this work just using update_acell ??

Start with the update_acell entry point and compare how the supplied Google Sheets formula is sent with a formula entered directly in the sheet. Check whether the locale-specific function and separators are preserved, then verify the behavior with a minimal formula reproduction; done means the formula works through update_acell without the unknown-function error.

Written by the indexing model from the issue text.