@Override
		public String toString(Function<? super N, String> nToString) {
			return map.spans()
					.stream()
					.map(s -> domain.toString(s, nToString))
					.collect(Collectors.joining(",", "[", "]"));
		}
Create a span set on the given domain

<p>
Extensions should invoke this as a super constructor with a fixed domain. See
{@link DefaultULongSpanSet} for an example.

@param domain the domain
Ghidra/Framework/Emulation/src/main/java/generic/Span.java