TableFieldSchema
final case class TableFieldSchema(name: Option[String], precision: Option[Long], policyTags: Option[TableFieldSchemaPolicyTags], description: Option[String], scale: Option[Long], collationSpec: Option[String], fields: Option[List[TableFieldSchema]], categories: Option[TableFieldSchemaCategories], mode: Option[String], `type`: Option[String], maxLength: Option[Long])