@Override
		public Entry<S, V> getEntry(N n) {
			Entry<N, Entry<S, V>> floor = spanTree.floorEntry(n);
			if (floor == null) {
				return null;
			}
			Entry<S, V> ent = floor.getValue();
			if (!ent.getKey().contains(n)) {
				return null;
			}
			return ent;
		}
Create a span map on the given domain

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

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