df1 <- data.frame(x = 1:5, y = rnorm(5), VIS_Groep_naam = "One")
df2 <- data.frame(x = 6:10, y = rnorm(5), VIS_Groep_naam = "Two")
df_both <- bind_both(df1, df2, id = "test",
y_left = "y", y_right = "y",
facet_var = rlang::sym("x"))
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