'fetch_lesson' is not an exported object from 'namespace:sandpaper'

The webpage describing this package is outdated . In includes the following call in the section "Contributing to a lesson":

sandpaper::fetch_lesson(markdown = TRUE, site = TRUE)

This call throws the error

Error: 'fetch_lesson' is not an exported object from 'namespace:sandpaper'

> sessionInfo()
R version 4.2.2 Patched (2022-11-10 r83330)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: LMDE 6 (faye)

Matrix products: default
BLAS:   /usr/lib/x86_64-linux-gnu/blas/libblas.so.3.11.0
LAPACK: /usr/lib/x86_64-linux-gnu/lapack/liblapack.so.3.11.0

locale:
 [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
 [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8
 [5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8
 [7] LC_PAPER=en_US.UTF-8       LC_NAME=C
 [9] LC_ADDRESS=C               LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

other attached packages:
[1] sandpaper_0.16.2

loaded via a namespace (and not attached):
 [1] Rcpp_1.0.11       whisker_0.4.1     xml2_1.3.6        tinkr_0.2.0
 [5] magrittr_2.0.3    xslt_1.4.4        gert_2.0.1        R6_2.5.1
 [9] rlang_1.1.2       fansi_1.0.6       tools_4.2.2       sys_3.4.2
[13] utf8_1.2.4        cli_3.6.2         withr_2.5.2       commonmark_1.9.0
[17] askpass_1.2.0     rprojroot_2.0.4   yaml_2.3.8        openssl_2.1.1
[21] assertthat_0.2.1  tibble_3.2.1      lifecycle_1.0.4   processx_3.8.3
[25] purrr_1.0.2       callr_3.7.3       vctrs_0.6.5       fs_1.6.3
[29] credentials_2.0.1 ps_1.7.5          glue_1.6.2        compiler_4.2.2
[33] pillar_1.9.0      pegboard_0.7.3    pkgconfig_2.0.3

carpentries / sandpaper

'fetch_lesson' is not an exported object from 'namespace:sandpaper' #563