# NOT RUN {
config.json <- system.file('extdata', 'config.json', package='configr')
list.left <- list()
list.right <- eval.config(file = config.json)
config.list.merge(list.left, list.right)
list.left <- list(a=c(123,456))
list.right <- list(a=c(4,5,6))
config.list.merge(list.left, list.right)
# }
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