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#' @details
#' Package 'learnr' is a companion to the book Aphalo, P. (2020). Learn R. New
#' York: Chapman and Hall/CRC, ISBN 9780367182533". This package supplies a list
#' of all the packages used in the book. It also contains all the original data
#' sets used in the book as well as code for scripts and code chunks included
#' in the book. Please, consult the "User Guide" under vignettes for instructions.
#'
"_PACKAGE"
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