Options for formula parsing
form_control(precalculate_gamparts = TRUE, check_form = TRUE)
Returns a list with options
logical; if TRUE (default), additive parts are pre-calculated and can later be used more efficiently. Set to FALSE only if no smooth effects are in the formula(s) and a formula is very large so that extracting all terms takes long or might fail
logical; if TRUE (default), the formula is checked in process_terms