docs: func (s *CertificateAuthorityConfiguration) Validate() error {
  	invalidParams := request.ErrInvalidParams{Context: "CertificateAuthorityConfiguration"}
  	if s.KeyAlgorithm == nil {
  		invalidParams.Add(request.NewErrParamRequired("KeyAlgorithm"))
  	}
  	if s.SigningAlgorithm == nil {
  		invalidParams.Add(request.NewErrParamRequired("SigningAlgorithm"))
  	}
  	if s.Subject == nil {
  		invalidParams.Add(request.NewErrParamRequired("Subject"))
  	}
  
  	if invalidParams.Len() > 0 {
  		return invalidParams
  	}
  	return nil
  }