GetListOfBatchFiles Sample Code is Running...
stdClass Object
(
    [response] => stdClass Object
        (
            [rmsg] => Authentication Failed
        )

)
[401] Error connecting to the API (https://api.cybersource.com/pts/v1/transaction-batches?startTime=2020-02-22T01%3A47%3A57.000Z&endTime=2020-02-22T22%3A47%3A57.000Z)