https://www.graalvm.org/ 
public final class com.oracle.truffle.js.runtime.builtins.JSModuleNamespaceObject extends com.oracle.truffle.js.runtime.objects.JSNonProxyObject
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: com.oracle.truffle.js.runtime.builtins.JSModuleNamespaceObject
  super_class: com.oracle.truffle.js.runtime.objects.JSNonProxyObject
{
  private final com.oracle.truffle.js.runtime.objects.JSModuleRecord module;
    descriptor: Lcom/oracle/truffle/js/runtime/objects/JSModuleRecord;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final java.util.Map<java.lang.String, com.oracle.truffle.js.runtime.objects.ExportResolution> exports;
    descriptor: Ljava/util/Map;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/util/Map<Ljava/lang/String;Lcom/oracle/truffle/js/runtime/objects/ExportResolution;>;

  protected void <init>(com.oracle.truffle.api.object.Shape, com.oracle.truffle.js.runtime.objects.JSModuleRecord, java.util.Map<java.lang.String, com.oracle.truffle.js.runtime.objects.ExportResolution>);
    descriptor: (Lcom/oracle/truffle/api/object/Shape;Lcom/oracle/truffle/js/runtime/objects/JSModuleRecord;Ljava/util/Map;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=4, args_size=4
        start local 0 // com.oracle.truffle.js.runtime.builtins.JSModuleNamespaceObject this
        start local 1 // com.oracle.truffle.api.object.Shape shape
        start local 2 // com.oracle.truffle.js.runtime.objects.JSModuleRecord module
        start local 3 // java.util.Map exports
         0: .line 72
            aload 0 /* this */
            aload 1 /* shape */
            invokespecial com.oracle.truffle.js.runtime.objects.JSNonProxyObject.<init>:(Lcom/oracle/truffle/api/object/Shape;)V
         1: .line 73
            aload 0 /* this */
            aload 2 /* module */
            putfield com.oracle.truffle.js.runtime.builtins.JSModuleNamespaceObject.module:Lcom/oracle/truffle/js/runtime/objects/JSModuleRecord;
         2: .line 74
            aload 0 /* this */
            aload 3 /* exports */
            putfield com.oracle.truffle.js.runtime.builtins.JSModuleNamespaceObject.exports:Ljava/util/Map;
         3: .line 75
            return
        end local 3 // java.util.Map exports
        end local 2 // com.oracle.truffle.js.runtime.objects.JSModuleRecord module
        end local 1 // com.oracle.truffle.api.object.Shape shape
        end local 0 // com.oracle.truffle.js.runtime.builtins.JSModuleNamespaceObject this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    4     0     this  Lcom/oracle/truffle/js/runtime/builtins/JSModuleNamespaceObject;
            0    4     1    shape  Lcom/oracle/truffle/api/object/Shape;
            0    4     2   module  Lcom/oracle/truffle/js/runtime/objects/JSModuleRecord;
            0    4     3  exports  Ljava/util/Map<Ljava/lang/String;Lcom/oracle/truffle/js/runtime/objects/ExportResolution;>;
    Signature: (Lcom/oracle/truffle/api/object/Shape;Lcom/oracle/truffle/js/runtime/objects/JSModuleRecord;Ljava/util/Map<Ljava/lang/String;Lcom/oracle/truffle/js/runtime/objects/ExportResolution;>;)V
    MethodParameters:
         Name  Flags
      shape    
      module   
      exports  

  public com.oracle.truffle.js.runtime.objects.JSModuleRecord getModule();
    descriptor: ()Lcom/oracle/truffle/js/runtime/objects/JSModuleRecord;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.runtime.builtins.JSModuleNamespaceObject this
         0: .line 78
            aload 0 /* this */
            getfield com.oracle.truffle.js.runtime.builtins.JSModuleNamespaceObject.module:Lcom/oracle/truffle/js/runtime/objects/JSModuleRecord;
            areturn
        end local 0 // com.oracle.truffle.js.runtime.builtins.JSModuleNamespaceObject this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/js/runtime/builtins/JSModuleNamespaceObject;

  public java.util.Map<java.lang.String, com.oracle.truffle.js.runtime.objects.ExportResolution> getExports();
    descriptor: ()Ljava/util/Map;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.runtime.builtins.JSModuleNamespaceObject this
         0: .line 82
            aload 0 /* this */
            getfield com.oracle.truffle.js.runtime.builtins.JSModuleNamespaceObject.exports:Ljava/util/Map;
            areturn
        end local 0 // com.oracle.truffle.js.runtime.builtins.JSModuleNamespaceObject this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/js/runtime/builtins/JSModuleNamespaceObject;
    Signature: ()Ljava/util/Map<Ljava/lang/String;Lcom/oracle/truffle/js/runtime/objects/ExportResolution;>;

  public static com.oracle.truffle.api.object.DynamicObject create(com.oracle.truffle.js.runtime.JSRealm, com.oracle.truffle.js.runtime.builtins.JSObjectFactory, com.oracle.truffle.js.runtime.objects.JSModuleRecord, java.util.Map<java.lang.String, com.oracle.truffle.js.runtime.objects.ExportResolution>);
    descriptor: (Lcom/oracle/truffle/js/runtime/JSRealm;Lcom/oracle/truffle/js/runtime/builtins/JSObjectFactory;Lcom/oracle/truffle/js/runtime/objects/JSModuleRecord;Ljava/util/Map;)Lcom/oracle/truffle/api/object/DynamicObject;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=6, locals=4, args_size=4
        start local 0 // com.oracle.truffle.js.runtime.JSRealm realm
        start local 1 // com.oracle.truffle.js.runtime.builtins.JSObjectFactory factory
        start local 2 // com.oracle.truffle.js.runtime.objects.JSModuleRecord module
        start local 3 // java.util.Map exports
         0: .line 86
            aload 1 /* factory */
            new com.oracle.truffle.js.runtime.builtins.JSModuleNamespaceObject
            dup
            aload 1 /* factory */
            aload 0 /* realm */
            invokevirtual com.oracle.truffle.js.runtime.builtins.JSObjectFactory.getShape:(Lcom/oracle/truffle/js/runtime/JSRealm;)Lcom/oracle/truffle/api/object/Shape;
            aload 2 /* module */
            aload 3 /* exports */
            invokespecial com.oracle.truffle.js.runtime.builtins.JSModuleNamespaceObject.<init>:(Lcom/oracle/truffle/api/object/Shape;Lcom/oracle/truffle/js/runtime/objects/JSModuleRecord;Ljava/util/Map;)V
            aload 0 /* realm */
            invokevirtual com.oracle.truffle.js.runtime.builtins.JSObjectFactory.initProto:(Lcom/oracle/truffle/api/object/DynamicObject;Lcom/oracle/truffle/js/runtime/JSRealm;)Lcom/oracle/truffle/api/object/DynamicObject;
            areturn
        end local 3 // java.util.Map exports
        end local 2 // com.oracle.truffle.js.runtime.objects.JSModuleRecord module
        end local 1 // com.oracle.truffle.js.runtime.builtins.JSObjectFactory factory
        end local 0 // com.oracle.truffle.js.runtime.JSRealm realm
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    1     0    realm  Lcom/oracle/truffle/js/runtime/JSRealm;
            0    1     1  factory  Lcom/oracle/truffle/js/runtime/builtins/JSObjectFactory;
            0    1     2   module  Lcom/oracle/truffle/js/runtime/objects/JSModuleRecord;
            0    1     3  exports  Ljava/util/Map<Ljava/lang/String;Lcom/oracle/truffle/js/runtime/objects/ExportResolution;>;
    Signature: (Lcom/oracle/truffle/js/runtime/JSRealm;Lcom/oracle/truffle/js/runtime/builtins/JSObjectFactory;Lcom/oracle/truffle/js/runtime/objects/JSModuleRecord;Ljava/util/Map<Ljava/lang/String;Lcom/oracle/truffle/js/runtime/objects/ExportResolution;>;)Lcom/oracle/truffle/api/object/DynamicObject;
    MethodParameters:
         Name  Flags
      realm    
      factory  
      module   
      exports  

  public java.lang.String getClassName();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.runtime.builtins.JSModuleNamespaceObject this
         0: .line 91
            ldc "Module"
            areturn
        end local 0 // com.oracle.truffle.js.runtime.builtins.JSModuleNamespaceObject this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/js/runtime/builtins/JSModuleNamespaceObject;

  public boolean setPrototypeOf(com.oracle.truffle.js.runtime.objects.JSDynamicObject);
    descriptor: (Lcom/oracle/truffle/js/runtime/objects/JSDynamicObject;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.js.runtime.builtins.JSModuleNamespaceObject this
        start local 1 // com.oracle.truffle.js.runtime.objects.JSDynamicObject newPrototype
         0: .line 96
            aload 1 /* newPrototype */
            getstatic com.oracle.truffle.js.runtime.objects.Null.instance:Lcom/oracle/truffle/js/runtime/objects/JSDynamicObject;
            if_acmpne 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 1 // com.oracle.truffle.js.runtime.objects.JSDynamicObject newPrototype
        end local 0 // com.oracle.truffle.js.runtime.builtins.JSModuleNamespaceObject this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    2     0          this  Lcom/oracle/truffle/js/runtime/builtins/JSModuleNamespaceObject;
            0    2     1  newPrototype  Lcom/oracle/truffle/js/runtime/objects/JSDynamicObject;
    MethodParameters:
              Name  Flags
      newPrototype  
}
SourceFile: "JSModuleNamespaceObject.java"