data("crude")
CMetaData(crude)
DMetaData(crude)
tdcl <- appendMeta(crude, cmeta = list(created = date()), dmeta = list(numbers = 1:20))
CMetaData(tdcl)
DMetaData(tdcl)
tdcl <- removeMeta(crude, cname = "created", dname = "numbers")
CMetaData(tdcl)
DMetaData(tdcl)
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