- genT gen(Random gen) 
- Undocumented in source. Be warned that the author may not have intended to support it. 
- opCallT opCall() 
- Undocumented in source. Be warned that the author may not have intended to support it. 
- toStringvoid toString(void delegate(const(char)[]) sink) 
- Undocumented in source. Be warned that the author may not have intended to support it. 
A Gen type that generates numeric values between the values of the template parameter low and high.