code: func FromOrdererName(name string) Option {
  	return func(o *Orderer) error {
  		ordererCfg, found := o.config.OrdererConfig(name)
  		if !found {
  			return errors.Errorf("orderer config not found for orderer : %s", name)
  		}
  
  		return FromOrdererConfig(ordererCfg)(o)
  	}
  }
docs: // FromOrdererName is a functional option for the orderer.New constructor that obtains an apiconfig.OrdererConfig
  // by name from the apiconfig.Config supplied to the constructor, and then constructs a new orderer from it