Lambda function not working

So I am trying to develop a lambda function that can check for maintenance to be done on RDS Instances and if they need to be upgraded. I also wanted to be able to see if my EKS cluster has an Upgrade to be done like it would say in the Upgrade Insights to update to a newer Kubernetes Version, however my lambda function says that the 'EKS' object has no attribute 'list_insights', but according to the boto3 doc it should exist, the reason I am doing this is to be able to get an E-mail telling me if those resources need to be updated or upgraded.

import boto3

def lambda_handler(event, context): rds = boto3.client('rds') sns = boto3.client('sns') eks = boto3.client('eks')

try:
    # Retrieve information about pending maintenance actions
    response_maintenance = rds.describe_pending_maintenance_actions()
    pending_actions_rds = response_maintenance.get('PendingMaintenanceActions', [])

    # Retrieve information about RDS instances
    response_instances = rds.describe_db_instances()
    db_instances = response_instances.get('DBInstances', [])

    # Retrieve information about Amazon EKS clusters
    response_clusters = eks.list_clusters()
    cluster_names = response_clusters.get('clusters', [])
    


    
    
    # Get AWS account ID and region
    aws_account_id = context.invoked_function_arn.split(':')[4]
    aws_region = context.invoked_function_arn.split(':')[3]
    
    
    message = (f"AWS Account ID: {aws_account_id}\n"
               f"AWS Region: {aws_region}\n\n")
    
    
    
    
    
    if pending_actions_rds:
        message += "Pending Maintenance Actions (RDS):\n"
        for action in pending_actions_rds:
            message += (f"Resource Identifier: {action.get('ResourceIdentifier', 'N/A')}\n"
                        f"Action: {action.get('Action', 'N/A')}\n"
                        f"Description: {action.get('Description', 'N/A')}\n\n")
    else:
        message += "No pending maintenance actions for RDS instances.\n\n"
    
    # Check if RDS instances need updates
    message += "RDS Instances:\n"
    for instance in db_instances:
        db_identifier = instance.get('DBInstanceIdentifier', 'N/A')
        db_engine = instance.get('Engine', 'N/A')
        maintenance_window = instance.get('PreferredMaintenanceWindow', 'N/A')
        engine_version = instance.get('EngineVersion', 'N/A')
        latest_engine_version = instance.get('LatestRestorableTime', 'N/A')
        
        if engine_version != latest_engine_version:
            message += (f"DB Identifier: {db_identifier}\n"
                        f"DB Engine: {db_engine}\n"
                        f"Current Engine Version: {engine_version}\n"
                        f"Latest Engine Version: {latest_engine_version}\n"
                        f"Maintenance Window: {maintenance_window}\n"
                        "Needs Update: Yes\n\n")
        else:
            message += (f"DB Identifier: {db_identifier}\n"
                        f"DB Engine: {db_engine}\n"
                        f"Current Engine Version: {engine_version}\n"
                        f"Latest Engine Version: {latest_engine_version}\n"
                        f"Maintenance Window: {maintenance_window}\n"
                        "Needs Update: No\n\n")



    # Check for updates on Amazon EKS clusters
    message += "Amazon EKS Clusters:\n"
    for cluster_name in cluster_names:
        cluster_info = eks.describe_cluster(name=cluster_name)
        cluster_status = cluster_info.get('cluster', {}).get('status', 'N/A')
        current_version = cluster_info.get('cluster', {}).get('version', 'N/A')
        
        # Retrieve information about available updates
        response_insights = eks.list_insights(
            clusterName=cluster_name
        )
        available_updates = response_insights.get('insights ', {})
        
        if available_updates:
            message += (f"Cluster Name: {cluster_name}\n"
                        f"Cluster Status: {cluster_status}\n"
                        f"Current Version: {current_version}\n"
                        "Available Updates:\n")
            for update_id in available_updates:
                message += f"  - {update_id}\n"
            message += "Upgrade Available: Yes\n\n"
        else:
            message += (f"Cluster Name: {cluster_name}\n"
                        f"Cluster Status: {cluster_status}\n"
                        f"Current Version: {current_version}\n"
                        "Upgrade Available: No\n\n")



    # Publish the message to the SNS topic
    sns.publish(
        TopicArn = 'arn:aws:sns:eu-west-1:{accountid}:{name}', 
        Message = message,
        Subject = 'RDS Maintenance/Update and EKS Update Report'  
    )

    print('Notification sent:\n', message)

except Exception as e:
    print('Error:', str(e))