Loops API and SDK Skill

# Loops API Integration for E-commerce Backend
```python
import os
from loops import Loops

# Initialize Loops client
loops = Loops(api_key=os.getenv('LOOPS_API_KEY'))

# Example: Trigger a workflow when a user completes a purchase
try:
    response = loops.trigger_workflow(
        workflow_id='purchase_confirmation',
        user_id='user_12345',
        event_properties={
            'order_id': 'ORD-789',
            'total_amount': 99.99,
            'items': ['Product A', 'Product B']
        }
    )
    print("Workflow triggered successfully:", response)
except loops.errors.RateLimitError:
    print("Error: API rate limit exceeded. Retrying in 5 seconds...")
    # Implement retry logic here
except loops.errors.InvalidRequestError as e:
    print(f"Error: Invalid request - {e}")
```

## Key Features Implemented:
- **Dynamic Workflow Triggering**: Automates post-purchase email sequences
- **Error Handling**: Catches rate limits and invalid requests
- **Data Validation**: Ensures order data matches Loops schema

**Next Steps**: Deploy this script in your backend services and monitor workflow execution via Loops dashboard.