This function only exists to suppress the false positive
from R CMD Check about unused libraries
Usage
do_not_run()
Details
Both rstantools and RcppParallel are required but are only used at
installation time. In the case of RcppParallel it is used in the
src/Makevars file which is created on the fly during installation
by rstantools. rstantools is used in the configure file.