Ensemble Model Spec example code causes an error

[schwarzpat]

I have been running the code chunk from
https://business-science.github.io/modeltime.ensemble/reference/ensemble_model_spec.html and i get this error at ensemble_fit_glmnet <- submodel_predictions %>%
ensemble_model_spec(
model_spec = linear_reg(
penalty = tune(),
mixture = tune()
) %>%
set_engine("glmnet"),
grid = 2,
control = control_grid(verbose = TRUE)
)

`
── Tuning Model Specification ───────────────────────────────────
ℹ Performing 5-Fold Cross Validation.

Error in tune::show_best():
! ... must be empty.
✖ Problematic argument:
• ..1 = metric
ℹ Did you forget to name an argument?
Backtrace:

1. submodel_predictions %>% ...
2. tune:::show_best.tune_results(., metric, n = 1)`

presumably this is because a deprecation in tune a while ago.

[mdancho84]

Should be fixed now