Check whether a file exists

check_wd(state, path, missing_msg = NULL)

Arguments

state	the state to start from
path	Path to the file you want to check
missing_msg	Custom feedback message in case the file is missing

if (FALSE) {
# Example 1 solution code:
# write("hello", file = "test.txt")

# SCT
ex() %>% check_wd("test.txt")
}