如何在DynamoDB表中插入多个项，并在超过最大容量时等待？

import time
import boto3

dynamodb = boto3.client('dynamodb')

def insert_items(table_name, items):
    response = dynamodb.describe_table(TableName=table_name)
    max_capacity = response['Table']['ProvisionedThroughput']['WriteCapacityUnits']
    
    for item in items:
        response = dynamodb.put_item(TableName=table_name, Item=item)
        consumed_capacity = response['ConsumedCapacity']['WriteCapacityUnits']
        
        if consumed_capacity >= max_capacity:
            wait_time = 1
            while consumed_capacity >= max_capacity:
                time.sleep(wait_time)
                response = dynamodb.describe_table(TableName=table_name)
                consumed_capacity = response['Table']['ProvisionedThroughput']['WriteCapacityUnits']
                wait_time *= 2
            
        print("Item inserted successfully.")