Update mythril/laser/ethereum/state/memory.py with type hint
Update mythril/laser/ethereum/state/memory.py with type hint

Co-Authored-By: nbanmp <ca4cb578c13d1ae7a94aace925535dce5339fcc2@gmail.com>
b-mueller/mythril,b-mueller/mythril,b-mueller/mythril,b-mueller/mythril