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/com/google/android/gms/tasks/Task.java

@@ -0,0 +1,79 @@
+package com.google.android.gms.tasks;
+
+import android.app.Activity;
+import java.util.concurrent.Executor;
+
+/* loaded from: classes3.dex */
+public abstract class Task<TResult> {
+    public Task<TResult> addOnCanceledListener(Activity activity, OnCanceledListener onCanceledListener) {
+        throw new UnsupportedOperationException("addOnCanceledListener is not implemented.");
+    }
+
+    public Task<TResult> addOnCompleteListener(Activity activity, OnCompleteListener<TResult> onCompleteListener) {
+        throw new UnsupportedOperationException("addOnCompleteListener is not implemented");
+    }
+
+    public abstract Task<TResult> addOnFailureListener(Activity activity, OnFailureListener onFailureListener);
+
+    public abstract Task<TResult> addOnFailureListener(OnFailureListener onFailureListener);
+
+    public abstract Task<TResult> addOnFailureListener(Executor executor, OnFailureListener onFailureListener);
+
+    public abstract Task<TResult> addOnSuccessListener(Activity activity, OnSuccessListener<? super TResult> onSuccessListener);
+
+    public abstract Task<TResult> addOnSuccessListener(OnSuccessListener<? super TResult> onSuccessListener);
+
+    public abstract Task<TResult> addOnSuccessListener(Executor executor, OnSuccessListener<? super TResult> onSuccessListener);
+
+    public <TContinuationResult> Task<TContinuationResult> continueWith(Continuation<TResult, TContinuationResult> continuation) {
+        throw new UnsupportedOperationException("continueWith is not implemented");
+    }
+
+    public <TContinuationResult> Task<TContinuationResult> continueWithTask(Continuation<TResult, Task<TContinuationResult>> continuation) {
+        throw new UnsupportedOperationException("continueWithTask is not implemented");
+    }
+
+    public abstract Exception getException();
+
+    public abstract TResult getResult();
+
+    public abstract <X extends Throwable> TResult getResult(Class<X> cls) throws Throwable;
+
+    public abstract boolean isCanceled();
+
+    public abstract boolean isComplete();
+
+    public abstract boolean isSuccessful();
+
+    public <TContinuationResult> Task<TContinuationResult> onSuccessTask(SuccessContinuation<TResult, TContinuationResult> successContinuation) {
+        throw new UnsupportedOperationException("onSuccessTask is not implemented");
+    }
+
+    public Task<TResult> addOnCanceledListener(OnCanceledListener onCanceledListener) {
+        throw new UnsupportedOperationException("addOnCanceledListener is not implemented.");
+    }
+
+    public Task<TResult> addOnCompleteListener(OnCompleteListener<TResult> onCompleteListener) {
+        throw new UnsupportedOperationException("addOnCompleteListener is not implemented");
+    }
+
+    public <TContinuationResult> Task<TContinuationResult> continueWith(Executor executor, Continuation<TResult, TContinuationResult> continuation) {
+        throw new UnsupportedOperationException("continueWith is not implemented");
+    }
+
+    public <TContinuationResult> Task<TContinuationResult> continueWithTask(Executor executor, Continuation<TResult, Task<TContinuationResult>> continuation) {
+        throw new UnsupportedOperationException("continueWithTask is not implemented");
+    }
+
+    public <TContinuationResult> Task<TContinuationResult> onSuccessTask(Executor executor, SuccessContinuation<TResult, TContinuationResult> successContinuation) {
+        throw new UnsupportedOperationException("onSuccessTask is not implemented");
+    }
+
+    public Task<TResult> addOnCanceledListener(Executor executor, OnCanceledListener onCanceledListener) {
+        throw new UnsupportedOperationException("addOnCanceledListener is not implemented");
+    }
+
+    public Task<TResult> addOnCompleteListener(Executor executor, OnCompleteListener<TResult> onCompleteListener) {
+        throw new UnsupportedOperationException("addOnCompleteListener is not implemented");
+    }
+}