## Not run: 
  stop("This is an error!", call. = FALSE)

## End(Not run)

# Inline \donttest is silently ommitted
message("Hi!")

# Block \donttest indicated with comments

# This is a comment
1 + 3


# And works even when not at the top level
if (TRUE) {
  
  1 + 2
  
}

answer <- 1

answer # should be 42

# To hide the \dontshow part, for conditional examples

answer <- 43

answer # should be still 42

# But this one runs, and the condition is hidden

answer <- 43

answer