public DataType getStringIndexDataType() {
		return ((heapSizes & 0x01) != 0) ? DWordDataType.dataType : WordDataType.dataType;
	}
Gets the data type of the index into the string stream.  Will be either
{@link DWordDataType} or {@link WordDataType}.

@return The data type of the index into the string stream.
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/pe/cli/streams/CliStreamMetadata.java