@Override
	public int[] getSizes() {
		Set<Integer> keySet = sizeAlignmentMap.keySet();
		int[] keys = new int[keySet.size()];
		int index = 0;
		for (Integer k : keySet) {
			keys[index++] = k;
		}
		Arrays.sort(keys);
		return keys;
	}
Gets the sizes that have an alignment specified.
@return the sizes with alignments mapped to them.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/data/DataOrganizationImpl.java