Custom notification variables

— [Event Definition] ---------------------------
Title: {event_definition_title} 
Description: {event_definition_description}
Type: {event_definition_type} 
--- [Event] -------------------------------------- 
Timestamp: {event.timestamp}
Message: {event.message} 
Source: {event.source}
Key: {event.key} 
Priority: {event.priority}
Alert: {event.alert} T
imestamp Processing: {event.timestamp}
Timerange Start: {event.timerange_start} 
Timerange End: {event.timerange_end}
Fields:
{foreach event.fields field} {field.key}: {field.value} {end}

{if backlog} 
--- [Backlog] ------------------------------------ 
Last messages accounting for this alert: 
{foreach backlog message}
{timestamp} - {source} - {message} 
{end}

as an example above