https://www.graalvm.org/ 
class com.oracle.truffle.polyglot.PolyglotMapAndFunction<K, V> extends com.oracle.truffle.polyglot.PolyglotMap<K, V> implements java.util.function.Function<java.lang.Object[], java.lang.Object>
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.oracle.truffle.polyglot.PolyglotMapAndFunction
  super_class: com.oracle.truffle.polyglot.PolyglotMap
{
  void <init>(com.oracle.truffle.polyglot.PolyglotLanguageContext, , java.lang.Class<K>, java.lang.Class<V>, java.lang.reflect.Type);
    descriptor: (Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;Ljava/lang/Object;Ljava/lang/Class;Ljava/lang/Class;Ljava/lang/reflect/Type;)V
    flags: (0x0000) 
    Code:
      stack=6, locals=6, args_size=6
        start local 0 // com.oracle.truffle.polyglot.PolyglotMapAndFunction this
        start local 1 // com.oracle.truffle.polyglot.PolyglotLanguageContext languageContext
        start local 2 // java.lang.Object obj
        start local 3 // java.lang.Class keyClass
        start local 4 // java.lang.Class valueClass
        start local 5 // java.lang.reflect.Type valueType
         0: .line 49
            aload 0 /* this */
            aload 1 /* languageContext */
            aload 2 /* obj */
            aload 3 /* keyClass */
            aload 4 /* valueClass */
            aload 5 /* valueType */
            invokespecial com.oracle.truffle.polyglot.PolyglotMap.<init>:(Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;Ljava/lang/Object;Ljava/lang/Class;Ljava/lang/Class;Ljava/lang/reflect/Type;)V
         1: .line 50
            return
        end local 5 // java.lang.reflect.Type valueType
        end local 4 // java.lang.Class valueClass
        end local 3 // java.lang.Class keyClass
        end local 2 // java.lang.Object obj
        end local 1 // com.oracle.truffle.polyglot.PolyglotLanguageContext languageContext
        end local 0 // com.oracle.truffle.polyglot.PolyglotMapAndFunction this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0    2     0             this  Lcom/oracle/truffle/polyglot/PolyglotMapAndFunction<TK;TV;>;
            0    2     1  languageContext  Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;
            0    2     2              obj  Ljava/lang/Object;
            0    2     3         keyClass  Ljava/lang/Class<TK;>;
            0    2     4       valueClass  Ljava/lang/Class<TV;>;
            0    2     5        valueType  Ljava/lang/reflect/Type;
    Signature: (Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;Ljava/lang/Object;Ljava/lang/Class<TK;>;Ljava/lang/Class<TV;>;Ljava/lang/reflect/Type;)V
    MethodParameters:
                 Name  Flags
      languageContext  
      obj              
      keyClass         
      valueClass       
      valueType        

  public final java.lang.Object apply(java.lang.Object[]);
    descriptor: ([Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=5, locals=2, args_size=2
        start local 0 // com.oracle.truffle.polyglot.PolyglotMapAndFunction this
        start local 1 // java.lang.Object[] arguments
         0: .line 54
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotMapAndFunction.cache:Lcom/oracle/truffle/polyglot/PolyglotMap$Cache;
            getfield com.oracle.truffle.polyglot.PolyglotMap$Cache.apply:Lcom/oracle/truffle/api/CallTarget;
            iconst_3
            anewarray java.lang.Object
            dup
            iconst_0
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotMapAndFunction.languageContext:Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;
            aastore
            dup
            iconst_1
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotMapAndFunction.guestObject:Ljava/lang/Object;
            aastore
            dup
            iconst_2
            aload 1 /* arguments */
            aastore
            invokeinterface com.oracle.truffle.api.CallTarget.call:([Ljava/lang/Object;)Ljava/lang/Object;
            areturn
        end local 1 // java.lang.Object[] arguments
        end local 0 // com.oracle.truffle.polyglot.PolyglotMapAndFunction this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    1     0       this  Lcom/oracle/truffle/polyglot/PolyglotMapAndFunction<TK;TV;>;
            0    1     1  arguments  [Ljava/lang/Object;
    MethodParameters:
           Name  Flags
      arguments  

  public java.lang.Object apply(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=2, locals=2, args_size=2
         0: .line 1
            aload 0
            aload 1
            checkcast java.lang.Object[]
            invokevirtual com.oracle.truffle.polyglot.PolyglotMapAndFunction.apply:([Ljava/lang/Object;)Ljava/lang/Object;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
Signature: <K:Ljava/lang/Object;V:Ljava/lang/Object;>Lcom/oracle/truffle/polyglot/PolyglotMap<TK;TV;>;Ljava/util/function/Function<[Ljava/lang/Object;Ljava/lang/Object;>;
SourceFile: "PolyglotMapAndFunction.java"
InnerClasses:
  final Cache = com.oracle.truffle.polyglot.PolyglotMap$Cache of com.oracle.truffle.polyglot.PolyglotMap