Nothing
# Utilities
make_sure_data_is_loaded <- function(x) {
if (!exists(x)) {
do.call(utils::data, list(x, package = "kokudosuuchi"))
}
}
is_installed <- function(pkg) {
system.file(package = pkg) != ""
}
is_file <- function(x) file.exists(x) && !dir.exists(x)
is_dir <- function(x) dir.exists(x)
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