docs: func (s *CreateCustomVerificationEmailTemplateInput) Validate() error {
  	invalidParams := request.ErrInvalidParams{Context: "CreateCustomVerificationEmailTemplateInput"}
  	if s.FailureRedirectionURL == nil {
  		invalidParams.Add(request.NewErrParamRequired("FailureRedirectionURL"))
  	}
  	if s.FromEmailAddress == nil {
  		invalidParams.Add(request.NewErrParamRequired("FromEmailAddress"))
  	}
  	if s.SuccessRedirectionURL == nil {
  		invalidParams.Add(request.NewErrParamRequired("SuccessRedirectionURL"))
  	}
  	if s.TemplateContent == nil {
  		invalidParams.Add(request.NewErrParamRequired("TemplateContent"))
  	}
  	if s.TemplateName == nil {
  		invalidParams.Add(request.NewErrParamRequired("TemplateName"))
  	}
  	if s.TemplateSubject == nil {
  		invalidParams.Add(request.NewErrParamRequired("TemplateSubject"))
  	}
  
  	if invalidParams.Len() > 0 {
  		return invalidParams
  	}
  	return nil
  }