getFunctionName: A set of helpers for Cache
Description
These are internal only.
Usage
getFunctionName(FUN, ..., overrideCall)digestRaster(object, compareRasterFileLength, algo)
Arguments
...
passing the ... from outer function, which will include potential
arguments to the FUN
overrideCall
A character string indicating a different (not "Cache") function
name to search for. Mostly so that this works with deprecated "cache".