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### =========================================================================
### The duplicated() and anyDuplicated() generics
### -------------------------------------------------------------------------
###
### Note that base::duplicated and base::anyDuplicated are S3 generics.
###
### Need to explicitly define those generics otherwise the implicit generics
### in package "base" would dispatch on ('x', 'incomparables'). Here we set
### dispatch on the 1st arg (the 'x' arg) only!
setGeneric("duplicated", signature="x")
setGeneric("anyDuplicated", signature="x")
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