Error: graph <- prepare_trend_graph(df, "year")

Warning message:
`gather_()` was deprecated in tidyr 1.2.0.
ℹ Please use `gather()` instead.
ℹ The deprecated feature was likely used in the ExPanDaR package.
  Please report the issue at <https://github.com/joachim-gassen/ExPanDaR/issues>.
This warning is displayed once every 8 hours.
Call `lifecycle::last_lifecycle_warnings()` to see where this warning was generated.