Address Autofill

I'm having issues with the address autofill tutorial (https://zurl.co/rGXQ). I have followed each step in the tutorial, but when i paste the code into a workflow/function, i'm getting the following error code:

Improper code format Correct format : <return_type> <category>.<function_name>(<type> <arg1>, <type> <arg1>,...<type> <arg50>){ <code> }

zip = "Billing_Code";

data = getUrl("https://maps.googleapis.com/maps/api/geocode/json?address=" + zip + "&key=xxxxx");

info "data : " + data;

result = data.get("results");

mp = Map();

for each rec in result

{

recmap = rec.toMap();

address_components = recmap.get("address_components").toJSONList();

for each ele in address_components

{

eleMap = ele.toMap();

typeVal = eleMap.get("types");

if(typeVal.contains("locality"))

{

City = eleMap.get("short_name");

mp.put("City",City);

}

else if(typeVal.contains("administrative_area_level_1"))

{

State = eleMap.get("long_name");

mp.put("State",State);

}

else if(typeVal.contains("country"))

{

Country = eleMap.get("long_name");

mp.put("Country",Country);

}

updateResp = zoho.crm.updateRecord("Leads",leadId,mp);

info mp;

info updateResp;

* My Zip Code field API is billing_code.

*I have also omitted the API key for this post.

Can anyone help?