Understanding Lambda Decision Errors for Phone Numbers Registered in DynamoDB

"errorType": "ReferenceError",
"errorMessage": "require is not defined in ES module scope, you can use import installed",

const AWS=require("aws-sdk");
const DynamoDB = new AWS.DynamoDB.DocumentClient({region: "ap-northeast-1"});
constableName = 'PhoneNumberTable';

exports.handler=async(event)=>{
// Caller ID
constphone=event.Details.ContactData.CustomerEndpoint.Address;
// Retrieving DynamoDB Listing
const db = wait DynamoDB.scan({TableName:tableName}).promise();
// Determining if Caller ID is in the List
const result=db.Items.some(item=>{
return (item.PhoneNumber==phone);
});
return { result:result};
};