#' @importFrom utils bibentry person
setOldClass('bibentry')
setOldClass('person')
# from devtools & roxygen
setOldClass(c("package", 'list'))
setOldClass('roxy_block')
# from htmltools
setOldClass(c("shiny.tag", 'list'))
setOldClass(c('Rd', 'list'))
setOldClass(c('Rd_tag', 'Rd'))
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