为语法错误抛出异常的flask-dynamodb示例？

from flask import Flask
from flask_dynamo import Dynamo

app = Flask(__name__)
app.config['DYNAMO_TABLES'] = [
    {
        'TableName': 'users',
        'KeySchema': [
            {'AttributeName': 'username', 'KeyType': 'HASH'},
        ],
        'AttributeDefinitions': [
            {'AttributeName': 'username', 'AttributeType': 'S'},
        ],
        'BillingMode': 'PAY_PER_REQUEST'
    }
]
dynamo = Dynamo(app)

@app.route('/')
def index():
    try:
        # 语法错误的代码示例
        response = dynamo.tables['users'].query(filter_condition="1 === 1")
        return str(response)
    except Exception as e:
        return str(e)

if __name__ == '__main__':
    app.run()