docs: func (s *Order) Validate() error {
  	invalidParams := request.ErrInvalidParams{Context: "Order"}
  	if s.Column == nil {
  		invalidParams.Add(request.NewErrParamRequired("Column"))
  	}
  	if s.Column != nil && len(*s.Column) < 1 {
  		invalidParams.Add(request.NewErrParamMinLen("Column", 1))
  	}
  	if s.SortOrder == nil {
  		invalidParams.Add(request.NewErrParamRequired("SortOrder"))
  	}
  
  	if invalidParams.Len() > 0 {
  		return invalidParams
  	}
  	return nil
  }