39 #ifndef PI_PROPERTIES_EMPTYHEADER_SERIALIZER    40 #define PI_PROPERTIES_EMPTYHEADER_SERIALIZER    42 #include <rtt/Property.hpp>    43 #include <rtt/base/PropertyIntrospection.hpp>    44 #include <rtt/marsh/StreamProcessor.hpp>    51     template<
typename o_stream>
    53         : 
public marsh::MarshallInterface,
    54           public marsh::StreamProcessor<o_stream>
    57         typedef o_stream output_stream;
    58         typedef o_stream OutputStream;
    61             marsh::StreamProcessor<o_stream>(os)
    67         virtual void flush() {}
    69         virtual void serialize(base::PropertyBase* v)
    73         virtual void serialize(
const PropertyBag &v)