function 
    /usr/local/lib/janet/spork/temple.janet  on  line  28 , column  1 
    (create  source  &opt  where )
    Compile  a  template  string  into  a  function.  Optionally  provide  a  
    location  where  the  source  is  from  to  improve  debugging.  Returns  the  
    template  function.