Streaming multiple object as array

[stanislavla]

The example indicates that streaming is possible: but stream SearchTransactionResponse contains repeated TransactionResponse transactions in its response. And could contain at once - TransactionResponse stream. Is such an application possible? How?
For example proto:

service WalletService {
  rpc searchTransaction (SearchTransactionRequest) returns (stream TransactionResponse) {}
}
message TransactionResponse {
  uint64 id = 1;
  uint64 userId = 2;
  string currency = 3;
  common.proto.ProtoBigDecimal amount = 4;
  common.proto.ProtoTimestamp transaction_date = 5;
}

Json stub file may looks like:

"jsonBody": [
     {"id": 1, userId: "1", "currency":1}, 
     {"id": 2, userId: "2", "currency":2}
]