sum
fun Iterable<SymbolSet>.sum(excludeLookAlikeSymbols: Boolean = false): List<String>
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Combines the symbols of all the symbol sets, optionally removing duplicate characters.
This method respects emoji sequences and will not remove duplicate characters if these characters are essential to displaying the embedded emoji correctly.
Return
a list of all symbols in all active symbol sets, optionally excluding duplicate characters
Parameters
excludeLookAlikeSymbols
whether to remove symbols that occur in SymbolSet.lookAlikeCharacters