It appears lambdas are not triggered from items being pushed to SQS if [SendMessageBatch](https://docs.aws.amazon.com/AWSSimpleQueueService/latest/APIReference/API_SendMessageBatch.html) is used instead of [SendMessage](https://docs.aws.amazon.com/AWSSimpleQueueService/latest/APIReference/API_SendMessage.html)
""" Delete an event source mapping
        ---
        operationId: 'deleteEventSourceMapping'
    """
    if not mapping_uuid:
        return jsonify({})
    mapping = delete_event_source(mapping_uuid)
    return jsonify(mapping)
@app.route('%s/functions/<function>/versions' % PATH_ROOT, methods=['POST'])
def publish_version(function):
    arn = func_arn(function)
    if arn not in arn_to_lambda:
        return not_found_error(arn)
    return jsonify(publish_new_function_version(arn))