public IotSiteWiseCustomerManagedDatastoreS3Storage withKeyPrefix(String keyPrefix) {
        setKeyPrefix(keyPrefix);
        return this;
    }
<p>
(Optional) The prefix used to create the keys of the data store data objects. Each object in an Amazon S3 bucket
has a key that is its unique identifier in the bucket. Each object in a bucket has exactly one key. The prefix
must end with a forward slash (/).
</p>

@param keyPrefix
       (Optional) The prefix used to create the keys of the data store data objects. Each object in an Amazon S3
       bucket has a key that is its unique identifier in the bucket. Each object in a bucket has exactly one key.
       The prefix must end with a forward slash (/).
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-iotanalytics/src/main/java/com/amazonaws/services/iotanalytics/model/IotSiteWiseCustomerManagedDatastoreS3Storage.java