OPAL Observe Aggregations for AWS Metrics -- 2

I need help writing OPAL aggregations on the Observe platform for a telemetry-based dashboard measuring AWS Lambda utilization.

Requirements:
- Aggregate CPU utilization, memory usage, and invocation count.
- Display metrics in real-time.
- Use line charts for visualization.

Ideal Skills and Experience:
- Proficiency in OPAL
- Experience with Observe platform
- Strong understanding of AWS Lambda metrics
- Data visualization skills, especially with line charts