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/sequences/DropSequence.java

@@ -0,0 +1,43 @@
+package kotlin.sequences;
+
+import java.util.Iterator;
+import kotlin.Metadata;
+import kotlin.jvm.internal.Intrinsics;
+import kotlin.jvm.internal.SourceDebugExtension;
+
+@Metadata(d1 = {"\u0000\"\n\u0002\u0018\u0002\n\u0000\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0002\b\u0002\n\u0002\u0010\b\n\u0002\b\u0004\n\u0002\u0010(\n\u0002\b\u0002\b\u0000\u0018\u0000*\u0004\b\u0000\u0010\u00012\b\u0012\u0004\u0012\u0002H\u00010\u00022\b\u0012\u0004\u0012\u0002H\u00010\u0003B\u001b\u0012\f\u0010\u0004\u001a\b\u0012\u0004\u0012\u00028\u00000\u0002\u0012\u0006\u0010\u0005\u001a\u00020\u0006¢\u0006\u0002\u0010\u0007J\u0016\u0010\b\u001a\b\u0012\u0004\u0012\u00028\u00000\u00022\u0006\u0010\t\u001a\u00020\u0006H\u0016J\u000f\u0010\n\u001a\b\u0012\u0004\u0012\u00028\u00000\u000bH\u0096\u0002J\u0016\u0010\f\u001a\b\u0012\u0004\u0012\u00028\u00000\u00022\u0006\u0010\t\u001a\u00020\u0006H\u0016R\u000e\u0010\u0005\u001a\u00020\u0006X\u0082\u0004¢\u0006\u0002\n\u0000R\u0014\u0010\u0004\u001a\b\u0012\u0004\u0012\u00028\u00000\u0002X\u0082\u0004¢\u0006\u0002\n\u0000¨\u0006\r"}, d2 = {"Lkotlin/sequences/DropSequence;", "T", "Lkotlin/sequences/Sequence;", "Lkotlin/sequences/DropTakeSequence;", "sequence", "count", "", "(Lkotlin/sequences/Sequence;I)V", "drop", "n", "iterator", "", "take", "kotlin-stdlib"}, k = 1, mv = {1, 9, 0}, xi = 48)
+@SourceDebugExtension({"SMAP\nSequences.kt\nKotlin\n*S Kotlin\n*F\n+ 1 Sequences.kt\nkotlin/sequences/DropSequence\n+ 2 fake.kt\nkotlin/jvm/internal/FakeKt\n*L\n1#1,680:1\n1#2:681\n*E\n"})
+/* loaded from: classes3.dex */
+public final class DropSequence<T> implements Sequence<T>, DropTakeSequence<T> {
+    private final int count;
+    private final Sequence<T> sequence;
+
+    /* JADX WARN: Multi-variable type inference failed */
+    public DropSequence(Sequence<? extends T> sequence, int i) {
+        Intrinsics.checkNotNullParameter(sequence, "sequence");
+        this.sequence = sequence;
+        this.count = i;
+        if (i >= 0) {
+            return;
+        }
+        throw new IllegalArgumentException(("count must be non-negative, but was " + i + '.').toString());
+    }
+
+    @Override // kotlin.sequences.DropTakeSequence
+    public Sequence<T> drop(int n4) {
+        int i = this.count + n4;
+        return i < 0 ? new DropSequence(this, n4) : new DropSequence(this.sequence, i);
+    }
+
+    @Override // kotlin.sequences.Sequence
+    public Iterator<T> iterator() {
+        return new DropSequence$iterator$1(this);
+    }
+
+    @Override // kotlin.sequences.DropTakeSequence
+    public Sequence<T> take(int n4) {
+        int i = this.count;
+        int i4 = i + n4;
+        return i4 < 0 ? new TakeSequence(this, n4) : new SubSequence(this.sequence, i, i4);
+    }
+}