My code:

function(my_function)
    cmake_parse_arguments(MY_FUNCTION "" "LIST1;LIST2" "" ${ARGN})

    message("List 1: ${MY_FUNCTION_LIST1}")
    message("List 2: ${MY_FUNCTION_LIST2}")

    # Alternatively, you can access the lists directly without parsing
    foreach(item IN LISTS MY_FUNCTION_LIST1)
        message("Item in List 1: ${item}")
    endforeach()

    foreach(item IN LISTS MY_FUNCTION_LIST2)
        message("Item in List 2: ${item}")
    endforeach()
endfunction()

set(my_list1 "item1;item2;item3")
set(my_list2 "itemA;itemB;itemC")

my_function(LIST1 "${my_list1}" LIST2 "${my_list2}")

I hope pass full my_list1 and full my_list2 to my_function, but message out

List 1: item1
List 2: itemA
Item in List 1: item1
Item in List 2: itemA

it only get list first item, how to pass full list to function