AWS Lambda function to repost a message to a topic with message attributes

Question

I am trying to create a Lambda function that will "sit" between two SNS topics, and publish to topic B whatever is coming to topic A.

Lambda Function

var AWS = require('aws-sdk');

exports.handler = function(event, context) {

    var params = {
        Message: event.Records[0].Sns.Message,
        MessageAttributes: event.Records[0].Sns.MessageAttributes,
        Subject: event.Records[0].Sns.Subject,
        TopicArn: process.env.main_bus_topic_arn
    }

    var publishTextPromise = new AWS.SNS({apiVersion: '2010-03-31'}).publish(params).promise();

    publishTextPromise.then(
        function(data) {
            console.log(`Message ${params.Message} sent to the topic ${params.TopicArn}`);
            console.log("MessageID is " + data.MessageId);
        }).catch(
            function(err) {
            console.error(err,err.stack);
        });
};

When I try to read the messageAttributes and forward them to topic B, I am getting the following errors:

Logs

2022-02-21T13:31:57.321Z    5698de94-f4d8-4136-87b6-126b910dc75d    ERROR   MultipleValidationErrors: There were 3 validation errors:
* MissingRequiredParameter: Missing required key 'DataType' in params.MessageAttributes['sdfsdf']
* UnexpectedParameter: Unexpected key 'Type' found in params.MessageAttributes['sdfsdf']
* UnexpectedParameter: Unexpected key 'Value' found in params.MessageAttributes['sdfsdf']
    at ParamValidator.validate (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:40:28)
    at Request.VALIDATE_PARAMETERS (/var/runtime/node_modules/aws-sdk/lib/event_listeners.js:132:42)
    at Request.callListeners (/var/runtime/node_modules/aws-sdk/lib/sequential_executor.js:106:20)
    at callNextListener (/var/runtime/node_modules/aws-sdk/lib/sequential_executor.js:96:12)
    at /var/runtime/node_modules/aws-sdk/lib/event_listeners.js:86:9
    at finish (/var/runtime/node_modules/aws-sdk/lib/config.js:396:7)
    at /var/runtime/node_modules/aws-sdk/lib/config.js:414:9
    at EnvironmentCredentials.get (/var/runtime/node_modules/aws-sdk/lib/credentials.js:127:7)
    at getAsyncCredentials (/var/runtime/node_modules/aws-sdk/lib/config.js:408:24)
    at Config.getCredentials (/var/runtime/node_modules/aws-sdk/lib/config.js:428:9) {
  code: 'MultipleValidationErrors',

Is there an easy way of forwarding the messageAttributes like the Message and Subject? Without having to read the attributes and recreate them?

Update When MessageAttributes are being read in the lambda function, they are in this format

{ testingAttr1: { Type: 'String', Value: 'AttrValues' } }

Publish API is expecting them to be formatted like below

{ 'testingAttr1': { DataType: 'String', StringValue: 'AttrValues' } }

Is there a way to avoid making this data transformation and just get them inside the Lambda and throw them directly into the publish API call?