Display output of a function in ZML Snippet

Hi!

I have a function that counts "Yes" string occurrences from a collection of form records

//Function to count "Yes" string from "ResponseField" Field in "CustomerSurvey" Form
int CustomerResponse()
{
count = 0; //initialize variable
for each rowVar in CustomerSurvey[ResponseField.contains("Yes")] //loop
{
count = count + 1;
}
return count;
}
//output: 200

I have called this function in <text> element in ZML Snippet as follows.

This snippet is used on a page in ZOHO Creator. The function and ZML Snippets resides in the same application.

<% {
%>
<panel>
.
.
...
<text marginLeft='0px' marginRight='20px' color='#00D9B1' size='36px' uppercase='false' underline='false' bold='true' italic='false' type='Text' bgColor='rgba(0, 0, 0, 0)' value=thisapp.CustomerResponse()
.
.
...
</pc>
</pr>
</panel>
<%}%>