code: func New(options ...interface{}) (dbg DbgFunction, dbgf DbgFunction) {
  	dbgr := NewDbgr()
  	if len(options) > 0 {
  		if fn, ok := options[0].(func(*Dbgr)); ok {
  			fn(dbgr)
  		}
  	}
  	return dbgr.DbgDbgf()
  }
docs: /*
  New will create and return a pair of debugging functions. You can customize where
  they output to by passing in an (optional) customization function:
  
      import (
          Dbg "github.com/robertkrimen/dbg"
          "os"
      )
  
      # dbg to os.Stderr
      dbg, dbgf := Dbg.New(func(dbgr *Dbgr) {
          dbgr.SetOutput(os.Stderr)
      })
  
  */