Tooltip.setTextContent Method
        
 Convenience method for setting the content based on a string.  Converts the newline sequence
 (\n) into HTML markup.
 
         
        Parameters
        
            - content
            
 
            - 
                
Type: String
The content. 
            - isHTML
            
 
            - 
                
Type: Boolean
A value indicating whether the content is already HTML markup, or plain text that needs to be wrapped otherwise.