Primer paso de la investigacion. Se aportan el .apk, las carpetas con el apk extraido y el apk descompilado. El archivo API_DOCUMENTATION.md es un archivo donde se anotaran los descubrimientos del funcionamiento de la API, y los .py son scripts para probar la funcionalidad de la API con los métodos que vayamos encontrando. Finalmente, los archivos .js son scripts de Frida para extraer informacion de la APP durante la ejecucion.

apk_decompiled/sources/v0/C0639d.java

@@ -0,0 +1,106 @@
+package v0;
+
+import android.os.Bundle;
+import androidx.lifecycle.C0201w;
+import g.C0363j;
+import java.util.Iterator;
+import java.util.LinkedHashSet;
+import java.util.Map;
+import kotlin.jvm.internal.Intrinsics;
+import o.C0516b;
+import o.C0520f;
+
+/* renamed from: v0.d, reason: case insensitive filesystem */
+/* loaded from: classes.dex */
+public final class C0639d {
+
+    /* renamed from: b, reason: collision with root package name */
+    public boolean f8630b;
+
+    /* renamed from: c, reason: collision with root package name */
+    public Bundle f8631c;
+
+    /* renamed from: d, reason: collision with root package name */
+    public boolean f8632d;
+
+    /* renamed from: e, reason: collision with root package name */
+    public C0363j f8633e;
+
+    /* renamed from: a, reason: collision with root package name */
+    public final C0520f f8629a = new C0520f();
+
+    /* renamed from: f, reason: collision with root package name */
+    public boolean f8634f = true;
+
+    public final Bundle a(String key) {
+        Intrinsics.checkNotNullParameter(key, "key");
+        if (!this.f8632d) {
+            throw new IllegalStateException("You can consumeRestoredStateForKey only after super.onCreate of corresponding component");
+        }
+        Bundle bundle = this.f8631c;
+        if (bundle == null) {
+            return null;
+        }
+        Bundle bundle2 = bundle.getBundle(key);
+        Bundle bundle3 = this.f8631c;
+        if (bundle3 != null) {
+            bundle3.remove(key);
+        }
+        Bundle bundle4 = this.f8631c;
+        if (bundle4 != null && !bundle4.isEmpty()) {
+            return bundle2;
+        }
+        this.f8631c = null;
+        return bundle2;
+    }
+
+    public final InterfaceC0638c b() {
+        String str;
+        InterfaceC0638c interfaceC0638c;
+        Intrinsics.checkNotNullParameter("androidx.lifecycle.internal.SavedStateHandlesProvider", "key");
+        Iterator it = this.f8629a.iterator();
+        do {
+            C0516b c0516b = (C0516b) it;
+            if (!c0516b.hasNext()) {
+                return null;
+            }
+            Map.Entry components = (Map.Entry) c0516b.next();
+            Intrinsics.checkNotNullExpressionValue(components, "components");
+            str = (String) components.getKey();
+            interfaceC0638c = (InterfaceC0638c) components.getValue();
+        } while (!Intrinsics.areEqual(str, "androidx.lifecycle.internal.SavedStateHandlesProvider"));
+        return interfaceC0638c;
+    }
+
+    public final void c(String key, InterfaceC0638c provider) {
+        Intrinsics.checkNotNullParameter(key, "key");
+        Intrinsics.checkNotNullParameter(provider, "provider");
+        if (((InterfaceC0638c) this.f8629a.b(key, provider)) != null) {
+            throw new IllegalArgumentException("SavedStateProvider with the given key is already registered");
+        }
+    }
+
+    public final void d() {
+        Intrinsics.checkNotNullParameter(C0201w.class, "clazz");
+        if (!this.f8634f) {
+            throw new IllegalStateException("Can not perform this action after onSaveInstanceState");
+        }
+        C0363j c0363j = this.f8633e;
+        if (c0363j == null) {
+            c0363j = new C0363j(this);
+        }
+        this.f8633e = c0363j;
+        try {
+            C0201w.class.getDeclaredConstructor(new Class[0]);
+            C0363j c0363j2 = this.f8633e;
+            if (c0363j2 != null) {
+                String className = C0201w.class.getName();
+                Intrinsics.checkNotNullExpressionValue(className, "clazz.name");
+                Intrinsics.checkNotNullParameter(className, "className");
+                ((LinkedHashSet) c0363j2.f6651b).add(className);
+            }
+        } catch (NoSuchMethodException e4) {
+            throw new IllegalArgumentException("Class " + C0201w.class.getSimpleName() + " must have default constructor in order to be automatically recreated", e4);
+        }
+    }
+}