<< v.line_prefix_ << "\t" << gen(v.v_.frequency()) << ",\n"\r
<< v.line_prefix_ << "\t" << (v.v_.decoder().size() ? v.v_.decoder() : "nullptr") << ",\n"\r
<< v.line_prefix_ << "\t" << (v.v_.callback().size() ? v.v_.callback() : "nullptr") << ",\n"\r
<< v.line_prefix_ << "\t" << gen(v.v_.frequency()) << ",\n"\r
<< v.line_prefix_ << "\t" << (v.v_.decoder().size() ? v.v_.decoder() : "nullptr") << ",\n"\r
<< v.line_prefix_ << "\t" << (v.v_.callback().size() ? v.v_.callback() : "nullptr") << ",\n"\r