Check Whether an Item is Cached
argoFloatsIsCached(name, debug = 0L)character value, naming the item.
an integer, passed to argoFloatsDebug().
A logical value indicating whether a cached value is available.
Other functions relating to cached values:
argoFloatsClearCache(),
argoFloatsGetFromCache(),
argoFloatsListCache(),
argoFloatsStoreInCache(),
argoFloatsWhenCached()