There is a wried behaviour in of bidrectional streaming RPC client on erl shell

[minghu6]

I found in rebar3 shell:

If create 'S' and send request function call seperated with comma , that's ok:

1> {ok, S1}=hellostreamingworld_multi_greeter_client:say_hello(ctx:new()),
1>   grpcbox_client:send(S1, #{name => "hi", num_greetings => "3"}),
2> grpcbox_client:recv_data(S1).
{ok,#{message => <<"Times: 3 Hello, hi ">>}}

but if seperated with period，send seems is not successful and receive_data always return timeout:

1> {ok, S1}=hellostreamingworld_multi_greeter_client:say_hello(ctx:new()).
{ok,#{channel => <0.626.0>,encoding => identity,
      monitor_ref => #Ref<0.1583415125.268697602.72154>,
      service_def =>
          {grpcbox_def,'hellostreamingworld.MultiGreeter',
                       #Fun<hellostreamingworld_multi_greeter_client.0.23407338>,
                       #Fun<hellostreamingworld_multi_greeter_client.1.23407338>},
      stream_id => 1,stream_pid => <0.630.0>}}
2> grpcbox_client:send(S1, #{name => "hi", num_greetings => "3"}).
ok
3> grpcbox_client:recv_data(S1).
timeout

Why, It's reasonable?

[tsloughter]

@minghu6 can you check if this is still an issue?