nim-chat-poc/protos/inbox.proto

syntax = "proto3";

package wap.inbox;

import "invite.proto";

message Note{
    string text = 1;
}

message InboxV1Frame {
    string recipient = 1;
    oneof frame_type {
        invite.InvitePrivateV1 invite_private_v1 = 10;
        Note note = 11;
    }
}