Options can be passed to the fit() function that control the output and
computations
fit_control(verbosity = 1L, catch = FALSE)An integer where a value of zero indicates
that no messages or output should be shown when packages are
loaded or when the model is fit. A value of 1 means that package
loading is quiet but model fits can produce output to the screen
(depending on if they contain their own verbose-type
argument). A value of 2 or more indicates that any output should
be seen.
A logical where a value of TRUE will evaluate
the model inside of try(, silent = TRUE). If the model fails,
an object is still returned (without an error) that inherits the
class "try-error".
A named list with the results of the function call