::: {.cell hash='03_Data_preprocessing_cache/revealjs/unnamed-chunk-40_dbfc82457e9c8a5c806b04c294b0b2be'}

```{.r .cell-code}
y
```

::: {.cell-output .cell-output-stdout}
```
# A tibble: 3 × 2
    key val_x
  <dbl> <chr>
1     1 y1   
2     2 y2   
3     4 y4   
```
:::
:::