Correct types

[sebastiw]

grpc status and status message could be undefined as defined in grpcbox_client_stream. The status will also always be a binary and not an integer as far as I can see.

for example here

on_receive_headers(H, State=#{resp_headers := _,
                              ctx := Ctx,
                              stream_id := StreamId,
                              client_pid := Pid}) ->
    Status = proplists:get_value(<<"grpc-status">>, H, undefined),
    Message = proplists:get_value(<<"grpc-message">>, H, undefined),
    Metadata = grpcbox_utils:headers_to_metadata(H),
    Pid ! {trailers, StreamId, {Status, Message, Metadata}},
    Ctx1 = ctx:with_value(Ctx, grpc_client_status, grpcbox_utils:status_to_string(Status)),
    {ok, State#{ctx => Ctx1,
                resp_trailers => H}};

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (e04193d) 39.53% compared to head (cfa8a80) 39.53%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #57   +/-   ##
=======================================
  Coverage   39.53%   39.53%           
=======================================
  Files          28       28           
  Lines        2122     2122           
=======================================
  Hits          839      839           
  Misses       1283     1283           

Files	Coverage Δ
src/grpcbox_stream.erl	64.61% <ø> (ø)

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