code: public void marshall(FunctionConfiguration functionConfiguration, ProtocolMarshaller protocolMarshaller) {
  
          if (functionConfiguration == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(functionConfiguration.getFunctionName(), FUNCTIONNAME_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getFunctionArn(), FUNCTIONARN_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getRuntime(), RUNTIME_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getRole(), ROLE_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getHandler(), HANDLER_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getCodeSize(), CODESIZE_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getDescription(), DESCRIPTION_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getTimeout(), TIMEOUT_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getMemorySize(), MEMORYSIZE_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getLastModified(), LASTMODIFIED_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getCodeSha256(), CODESHA256_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getVersion(), VERSION_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getVpcConfig(), VPCCONFIG_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getDeadLetterConfig(), DEADLETTERCONFIG_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getEnvironment(), ENVIRONMENT_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getKMSKeyArn(), KMSKEYARN_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getTracingConfig(), TRACINGCONFIG_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getMasterArn(), MASTERARN_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getRevisionId(), REVISIONID_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getLayers(), LAYERS_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.