code: func NewSendFromCmd(fromAccount, toAddress string, amount float64, minConf *int, comment, commentTo *string) *SendFromCmd {
  	return &SendFromCmd{
  		FromAccount: fromAccount,
  		ToAddress:   toAddress,
  		Amount:      amount,
  		MinConf:     minConf,
  		Comment:     comment,
  		CommentTo:   commentTo,
  	}
  }
docs: // NewSendFromCmd returns a new instance which can be used to issue a sendfrom
  // JSON-RPC command.
  //
  // The parameters which are pointers indicate they are optional.  Passing nil
  // for optional parameters will use the default value.