Hello,
while trying to format numbers with "sci" format and to change multiply mark in accordance with the example in this github-repository, I'm facing with the error saying that there is no such a parameter for the format_numbers() function:

Using global the method formatdown_options(multiply_mark = "\\cdot") doesn't take any effect in resulting text but giving no error though.
The version of the formatdown package installed is 0.1.4, it was installed from one of the CRAN-mirror repository.
What am I doing wrong?