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Maintaining integer64 S3 class attribute.
plusclass(class, whichclass) minusclass(class, whichclass)
NULL or a character vector of class attributes
the (single) class name to add or remove from the class vector
oldClass integer64
oldClass
integer64
# NOT RUN { plusclass("inheritingclass","integer64") minusclass(c("inheritingclass","integer64"), "integer64") # }
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