Send notification to Agent when employee attaches a file to an existing request

Summary:

Send notification to Agent when employee attaches a file to an existing request

Content (please ensure you mask any confidential information):

I want to create a notification to send to agent when the employee uploads an attachment on an existing request. I'm hoping to create maybe a template to say 'Employee has uploaded attachment'

Is there also a sample Groovy script in Application composer which sends notification to Agents once employee uploads attachments to existing Help Desk requests?

Version (include the version you are using, if applicable):

Redwood

Code Snippet (add any code snippets that support your topic, if applicable):