def option_value
      if option_id
        option_endpoint = "/customFields/#{custom_field_id}/options/#{option_id}"
        option = CustomFieldOption.from_response client.get(option_endpoint)
        option.value
      end
    end
def option_value
      if option_id
        option_endpoint = "/customFields/#{custom_field_id}/options/#{option_id}"
        option = CustomFieldOption.from_response client.get(option_endpoint)
        option.value
      end
    end
Need to make another call to get the actual value if the custom field type == 'list'