dot-y-open-paren-.x-close-paren.Rdhelper function call `.y(.x)` for functional programming, replacing `purrr::at_depth(.x, 0, .y, ...)` which is deprecated.
".y(.x)"(.x, .y, ...)
| .x | The first argument for function/formula passed as `.y`.  | 
    
|---|---|
| .y | The function/formula to be called with argument `.x`.  | 
    
| ... | Additional arguments to `.y()`.  | 
    
Whatever is returned from `.y(.x, ...)`.