code: public com.google.protobuf.ByteString
        getReportExitBytes() {
      java.lang.Object ref = reportExit_;
      if (ref instanceof java.lang.String) {
        com.google.protobuf.ByteString b = 
            com.google.protobuf.ByteString.copyFromUtf8(
                (java.lang.String) ref);
        reportExit_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }
docs: <code>optional string report_exit = 6;</code>
  
  <pre>
  name of function(ID = &lt;numeric function id&gt;, VAL = &lt;return value&gt;);
  used to inform the harness about a function exit.  Must return
  its second argument.
  
  @return VAL
  </pre>