cloudwatch_dashboard_widgets

def build_widget(name: str, region:str) -> dict:

    return {
        "type": "metric",
        "width": 12,
        "height": 9,
        "properties": {
            "metrics": [
                [ "DX", "WaitingInQueue", "CustomerName", f"{name}", { "stat": "Sum" } ]
            ],
            "view": "timeSeries",
            "stacked": False,
            "region": f"{region}",
            "title": f"WaitingInQueue - {name}",
            "period": 300
        }
    }
    
    
DashboardBodyReady = {
    "widgets": [build_widget(name[0], region) for region in metrics_by_region for name in metrics_by_region[region]]
}

client = boto3.client('cloudwatch', region_name='eu-west-1')
client.put_dashboard(DashboardName='DX', DashboardBody=json.dumps(DashboardBodyReady))