docs: public void marshall(EmailConfigurationType emailConfigurationType, ProtocolMarshaller protocolMarshaller) {
  
          if (emailConfigurationType == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(emailConfigurationType.getSourceArn(), SOURCEARN_BINDING);
              protocolMarshaller.marshall(emailConfigurationType.getReplyToEmailAddress(), REPLYTOEMAILADDRESS_BINDING);
              protocolMarshaller.marshall(emailConfigurationType.getEmailSendingAccount(), EMAILSENDINGACCOUNT_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }