@Override
	public boolean contains(Address addr) {
		if (addr.hasSameAddressSpace(startAddress)) {
			long offset = addr.subtract(startAddress);
			return offset >= 0 && offset < length;
		}
		return false;
	}
Get collection of blocks which map onto this block.

@return collection of blocks which map onto this block or null if none identified
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/mem/MemoryBlockDB.java