# NOT RUN {
# Default: 
x <- c("Hello world!", "This is a 1st sentence.", 
       "This is the 2nd sentence.", "THE END.")
count_chars(x)
# Options: 
count_chars(x, case_sense = FALSE)
count_chars(x, rm_specials = FALSE)
count_chars(x, sort_freq = FALSE)
# }
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