QueryPlanNode
constructor( sequence: Trace.QueryPlanNode.SequenceNode? = null, parallel: Trace.QueryPlanNode.ParallelNode? = null, fetch: Trace.QueryPlanNode.FetchNode? = null, flatten: Trace.QueryPlanNode.FlattenNode? = null, defer: Trace.QueryPlanNode.DeferNode? = null, condition: Trace.QueryPlanNode.ConditionNode? = null, unknownFields: ByteString = ByteString.EMPTY)