Returns information about the batch load task, including configurations, mappings, progress, and other details. <a href="https://docs.aws.amazon.com/timestream/latest/developerguide/ts-limits.html">Service quotas apply</a>. See <a href="https://docs.aws.amazon.com/timestream/latest/developerguide/code-samples.describe-batch-load.html">code sample</a> for details.