Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

a.h
template <class DataType> DataType values(DataType) { __builtin_va_list ValueArgs; return DataType(); }

template <class DataType>
class opt {
public:
  template <class Mods>
  opt(Mods) {}
};