Double elimination tournament with winners and losers brackets.
Examples
# Double elimination bracket (two losses to be eliminated)
trn <- tournament(paste("Team", LETTERS[1:8])) |>
double_elim("bracket")
# After Swiss rounds
trn <- tournament(paste("Team", LETTERS[1:16])) |>
swiss("open", rounds = 4) |>
double_elim("playoffs", take = top_n(8))
