docs: public void marshall(EffectivePolicy effectivePolicy, ProtocolMarshaller protocolMarshaller) {
  
          if (effectivePolicy == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(effectivePolicy.getPolicyName(), POLICYNAME_BINDING);
              protocolMarshaller.marshall(effectivePolicy.getPolicyArn(), POLICYARN_BINDING);
              protocolMarshaller.marshall(effectivePolicy.getPolicyDocument(), POLICYDOCUMENT_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }