https://source.android.com/ 
class android.app.UiAutomation$IAccessibilityServiceClientImpl extends android.accessibilityservice.AccessibilityService$IAccessibilityServiceClientWrapper
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: android.app.UiAutomation$IAccessibilityServiceClientImpl
  super_class: android.accessibilityservice.AccessibilityService$IAccessibilityServiceClientWrapper
{
  final android.app.UiAutomation this$0;
    descriptor: Landroid/app/UiAutomation;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  public void <init>(android.app.UiAutomation, android.os.Looper);
    descriptor: (Landroid/app/UiAutomation;Landroid/os/Looper;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=6, locals=3, args_size=3
        start local 0 // android.app.UiAutomation$IAccessibilityServiceClientImpl this
        start local 2 // android.os.Looper looper
         0: .line 1128
            aload 0 /* this */
            aload 1
            putfield android.app.UiAutomation$IAccessibilityServiceClientImpl.this$0:Landroid/app/UiAutomation;
         1: .line 1129
            aload 0 /* this */
            aconst_null
            aload 2 /* looper */
            new android.app.UiAutomation$IAccessibilityServiceClientImpl$1
            dup
            aload 1
            invokespecial android.app.UiAutomation$IAccessibilityServiceClientImpl$1.<init>:(Landroid/app/UiAutomation;)V
            invokespecial android.accessibilityservice.AccessibilityService$IAccessibilityServiceClientWrapper.<init>:(Landroid/content/Context;Landroid/os/Looper;Landroid/accessibilityservice/AccessibilityService$Callbacks;)V
         2: .line 1215
            return
        end local 2 // android.os.Looper looper
        end local 0 // android.app.UiAutomation$IAccessibilityServiceClientImpl this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0    this  Landroid/app/UiAutomation$IAccessibilityServiceClientImpl;
            0    3     2  looper  Landroid/os/Looper;
    MethodParameters:
        Name  Flags
      this$0  final
      looper  
}
SourceFile: "UiAutomation.java"
NestHost: android.app.UiAutomation
InnerClasses:
  public abstract Callbacks = android.accessibilityservice.AccessibilityService$Callbacks of android.accessibilityservice.AccessibilityService
  public IAccessibilityServiceClientWrapper = android.accessibilityservice.AccessibilityService$IAccessibilityServiceClientWrapper of android.accessibilityservice.AccessibilityService
  private IAccessibilityServiceClientImpl = android.app.UiAutomation$IAccessibilityServiceClientImpl of android.app.UiAutomation
  android.app.UiAutomation$IAccessibilityServiceClientImpl$1