TARGET_HEX = ("4588", "458a")

listing = program.getListing()
function_manager = program.getFunctionManager()

instruction = listing.getInstructions(True)

while instruction.hasNext():
    insn = instruction.next()
    text = insn.toString().lower()
    if not any(token in text for token in TARGET_HEX):
        continue

    address = insn.getAddress()
    function = function_manager.getFunctionContaining(address)
    function_name = function.getName() if function is not None else "<no function>"
    print(f"{address} {function_name} {insn}")