convert_entry_type an array of string to array of integer

[wedy]

hi there, I was wondering if someone can help me with this

currently, i have a field "1,2,3,4" and I split this into an array using a split_string

 - "split_string":
      "entries":
      - "delimiter": ","
        "source": "ids"

however, the result is ["1", "2", "3", "4"], I would like to convert these into integer, I have tried it with convert_entry_type and it seems doesn't do array of string

  - "convert_entry_type":
      "key": "ids"
      "type": "integer" 

I appreciate the help 🙇