GlobalVectors object lost fit method?

Hey there. I find [your example](https://cran.r-project.org/web/packages/text2vec/vignettes/glove.html) from Feb no longer works for me (macOS 11.0.1, version 4.0.3, text2vec 0.6).

```
require(text2vec)
#> Loading required package: text2vec
glove = GlobalVectors$new(rank = 50, x_max = 10)
glove$fit
#> NULL
```

In your example [script](https://cran.r-project.org/web/packages/text2vec/vignettes/glove.html), replacing `glove$fit()` line with `glove$fit_transform()` does train the model. But next line fails:

```
word_vectors <- glove$get_word_vectors()
Error: attempt to apply non-function
```

because `glove$get_word_vectors` is also missing. Any idea what is going on?