code: func NewSendManyCmd(fromAccount string, amounts map[string]float64, minConf *int, comment *string) *SendManyCmd {
  	return &SendManyCmd{
  		FromAccount: fromAccount,
  		Amounts:     amounts,
  		MinConf:     minConf,
  		Comment:     comment,
  	}
  }
docs: // NewSendManyCmd returns a new instance which can be used to issue a sendmany
  // JSON-RPC command.
  //
  // The parameters which are pointers indicate they are optional.  Passing nil
  // for optional parameters will use the default value.