outbound.go
func (call *OutboundCall) writeMethod(method []byte) error {
	call.statsReporter.IncCounter("outbound.calls.send", call.commonStatsTags, 1)
	return NewArgWriter(call.arg1Writer()).Write(method)
}
func (call *OutboundCall) writeMethod(method []byte) error {
	call.statsReporter.IncCounter("outbound.calls.send", call.commonStatsTags, 1)
	return NewArgWriter(call.arg1Writer()).Write(method)
}
// writeMethod writes the method (arg1) to the call