# \donttest{
df1 <- data.frame(id = c(3, 1, 2), score = c(70, 90, 80))
df2 <- data.frame(id = c(2, 3, 1), score = c(80, 75, 90))
prepare_datasets(df1, df2, sort_columns = "id", filter_criteria = "score > 75")
# }
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