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