templateSuffix property
If specified, treats the destination table as a base template, and inserts the rows into an instance table named "{destination}{templateSuffix}".
BigQuery will manage creation of the instance table, using the schema of the base template table. See https://cloud.google.com/bigquery/streaming-data-into-bigquery#template-tables for considerations when working with templates tables.
Optional.
Implementation
core.String? templateSuffix;