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/kotlin/collections/builders/MapBuilderValues.java

@@ -0,0 +1,78 @@
+package kotlin.collections.builders;
+
+import java.util.Collection;
+import java.util.Iterator;
+import kotlin.Metadata;
+import kotlin.collections.AbstractMutableCollection;
+import kotlin.jvm.internal.Intrinsics;
+import kotlin.jvm.internal.markers.KMutableCollection;
+
+@Metadata(d1 = {"\u0000>\n\u0002\u0018\u0002\n\u0000\n\u0002\u0010\u001f\n\u0002\u0018\u0002\n\u0000\n\u0002\u0018\u0002\n\u0002\b\u0004\n\u0002\u0010\b\n\u0002\b\u0003\n\u0002\u0010\u000b\n\u0002\b\u0004\n\u0002\u0010\u001e\n\u0000\n\u0002\u0010\u0002\n\u0002\b\u0003\n\u0002\u0010)\n\u0002\b\u0004\b\u0000\u0018\u0000*\u0004\b\u0000\u0010\u00012\b\u0012\u0004\u0012\u0002H\u00010\u00022\b\u0012\u0004\u0012\u0002H\u00010\u0003B\u0019\b\u0000\u0012\u0010\u0010\u0004\u001a\f\u0012\u0002\b\u0003\u0012\u0004\u0012\u00028\u00000\u0005¢\u0006\u0002\u0010\u0006J\u0015\u0010\r\u001a\u00020\u000e2\u0006\u0010\u000f\u001a\u00028\u0000H\u0016¢\u0006\u0002\u0010\u0010J\u0016\u0010\u0011\u001a\u00020\u000e2\f\u0010\u0012\u001a\b\u0012\u0004\u0012\u00028\u00000\u0013H\u0016J\b\u0010\u0014\u001a\u00020\u0015H\u0016J\u0016\u0010\u0016\u001a\u00020\u000e2\u0006\u0010\u000f\u001a\u00028\u0000H\u0096\u0002¢\u0006\u0002\u0010\u0010J\b\u0010\u0017\u001a\u00020\u000eH\u0016J\u000f\u0010\u0018\u001a\b\u0012\u0004\u0012\u00028\u00000\u0019H\u0096\u0002J\u0015\u0010\u001a\u001a\u00020\u000e2\u0006\u0010\u000f\u001a\u00028\u0000H\u0016¢\u0006\u0002\u0010\u0010J\u0016\u0010\u001b\u001a\u00020\u000e2\f\u0010\u0012\u001a\b\u0012\u0004\u0012\u00028\u00000\u0013H\u0016J\u0016\u0010\u001c\u001a\u00020\u000e2\f\u0010\u0012\u001a\b\u0012\u0004\u0012\u00028\u00000\u0013H\u0016R\u001b\u0010\u0004\u001a\f\u0012\u0002\b\u0003\u0012\u0004\u0012\u00028\u00000\u0005¢\u0006\b\n\u0000\u001a\u0004\b\u0007\u0010\bR\u0014\u0010\t\u001a\u00020\n8VX\u0096\u0004¢\u0006\u0006\u001a\u0004\b\u000b\u0010\f¨\u0006\u001d"}, d2 = {"Lkotlin/collections/builders/MapBuilderValues;", "V", "", "Lkotlin/collections/AbstractMutableCollection;", "backing", "Lkotlin/collections/builders/MapBuilder;", "(Lkotlin/collections/builders/MapBuilder;)V", "getBacking", "()Lkotlin/collections/builders/MapBuilder;", "size", "", "getSize", "()I", "add", "", "element", "(Ljava/lang/Object;)Z", "addAll", "elements", "", "clear", "", "contains", "isEmpty", "iterator", "", "remove", "removeAll", "retainAll", "kotlin-stdlib"}, k = 1, mv = {1, 9, 0}, xi = 48)
+/* loaded from: classes3.dex */
+public final class MapBuilderValues<V> extends AbstractMutableCollection<V> implements Collection<V>, KMutableCollection {
+    private final MapBuilder<?, V> backing;
+
+    public MapBuilderValues(MapBuilder<?, V> backing) {
+        Intrinsics.checkNotNullParameter(backing, "backing");
+        this.backing = backing;
+    }
+
+    @Override // kotlin.collections.AbstractMutableCollection, java.util.AbstractCollection, java.util.Collection
+    public boolean add(V element) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override // java.util.AbstractCollection, java.util.Collection
+    public boolean addAll(Collection<? extends V> elements) {
+        Intrinsics.checkNotNullParameter(elements, "elements");
+        throw new UnsupportedOperationException();
+    }
+
+    @Override // java.util.AbstractCollection, java.util.Collection
+    public void clear() {
+        this.backing.clear();
+    }
+
+    @Override // java.util.AbstractCollection, java.util.Collection
+    public boolean contains(Object element) {
+        return this.backing.containsValue(element);
+    }
+
+    public final MapBuilder<?, V> getBacking() {
+        return this.backing;
+    }
+
+    @Override // kotlin.collections.AbstractMutableCollection
+    public int getSize() {
+        return this.backing.size();
+    }
+
+    @Override // java.util.AbstractCollection, java.util.Collection
+    public boolean isEmpty() {
+        return this.backing.isEmpty();
+    }
+
+    @Override // java.util.AbstractCollection, java.util.Collection, java.lang.Iterable
+    public Iterator<V> iterator() {
+        return this.backing.valuesIterator$kotlin_stdlib();
+    }
+
+    @Override // java.util.AbstractCollection, java.util.Collection
+    public boolean remove(Object element) {
+        return this.backing.removeValue$kotlin_stdlib(element);
+    }
+
+    @Override // java.util.AbstractCollection, java.util.Collection
+    public boolean removeAll(Collection<? extends Object> elements) {
+        Intrinsics.checkNotNullParameter(elements, "elements");
+        this.backing.checkIsMutable$kotlin_stdlib();
+        return super.removeAll(elements);
+    }
+
+    @Override // java.util.AbstractCollection, java.util.Collection
+    public boolean retainAll(Collection<? extends Object> elements) {
+        Intrinsics.checkNotNullParameter(elements, "elements");
+        this.backing.checkIsMutable$kotlin_stdlib();
+        return super.retainAll(elements);
+    }
+}