from boto3 import resource
from boto3.dynamodb.conditions import Key

def delete_all_items(table_name, filter_key=None, filter_value=None):
    client = boto3.client('dynamodb')
    dynamodb = boto3.resource('dynamodb')
    table = dynamodb.Table(table_name)
    response = client.describe_table(TableName=table_name)
    keys = [k['AttributeName'] for k in response['Table']['KeySchema']]

    dynamodb_resource = resource('dynamodb')
    table = dynamodb_resource.Table(table_name)

    if filter_key and filter_value:
        filtering_exp = Key(filter_key).eq(filter_value)
        response = table.scan(FilterExpression=filtering_exp)
    else:
        response = table.scan()

    while True:
        print(len(response['Items']))

        if response.get('LastEvaluatedKey'):
            response = table.scan(ExclusiveStartKey=response['LastEvaluatedKey'])
            with table.batch_writer() as batch:
                for item in response['Items']:
                    key_dict = {k: item[k] for k in keys}
                    batch.delete_item(Key=key_dict)
        else:
            break


delete_all_items("MiroData")