diff --git a/CMakeLists.txt b/CMakeLists.txt
index 757d43385..80079e947 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -547,6 +547,15 @@ target_include_directories(tdcore PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURC
 target_include_directories(tdcore SYSTEM PRIVATE ${OPENSSL_INCLUDE_DIR})
 target_link_libraries(tdcore PUBLIC tdactor tdutils tdnet tddb PRIVATE ${OPENSSL_CRYPTO_LIBRARY})
 
+if (TD_API_JAVA_PACKAGE AND NOT ANDROID) # jni is available by default on Android
+  if (NOT JNI_FOUND)
+    find_package(JNI REQUIRED)
+  endif()
+  message(STATUS "Found JNI: ${JNI_INCLUDE_DIRS} ${JNI_LIBRARIES}")
+  target_include_directories(tdcore PUBLIC ${JAVA_INCLUDE_PATH} ${JAVA_INCLUDE_PATH2})
+  target_link_libraries(tdcore PUBLIC ${JAVA_JVM_LIBRARY})
+endif()
+
 if (NOT CMAKE_CROSSCOMPILING)
   add_dependencies(tdcore tl_generate_common)
 endif()
@@ -558,6 +567,11 @@ target_include_directories(tdclient PUBLIC
 )
 target_link_libraries(tdclient PRIVATE tdcore)
 
+if (TD_API_JAVA_PACKAGE AND NOT ANDROID) # jni is available by default on Android
+  target_include_directories(tdclient PUBLIC ${JAVA_INCLUDE_PATH} ${JAVA_INCLUDE_PATH2})
+  target_link_libraries(tdclient PUBLIC ${JAVA_JVM_LIBRARY})
+endif()
+
 # tdc - TDLib interface in pure c.
 add_library(tdc STATIC ${TL_C_SCHEME_SOURCE} td/telegram/td_c_client.cpp td/telegram/td_c_client.h)
 target_include_directories(tdc PUBLIC
@@ -595,13 +609,21 @@ target_link_libraries(tdjson_static PRIVATE tdjson_private)
 target_compile_definitions(tdjson_static PUBLIC TDJSON_STATIC_DEFINE)
 target_include_directories(tdjson_static PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>)
 
+set(BIGOBJ)
 if (WIN32 OR CYGWIN)
   if (MSVC)
-    target_compile_options(tdcore PUBLIC "/bigobj")
+    set(BIGOBJ "/bigobj")
   elseif (GCC)
-    target_compile_options(tdcore PUBLIC "-Wa,-mbig-obj")
+    set(BIGOBJ "-Wa,-mbig-obj")
   endif()
 endif()
+if (BIGOBJ)
+  target_compile_options(tdc PUBLIC ${BIGOBJ})
+  target_compile_options(tdcore PUBLIC ${BIGOBJ})
+  target_compile_options(tdclient PUBLIC ${BIGOBJ})
+  target_compile_options(tdjson PUBLIC ${BIGOBJ})
+  target_compile_options(tdjson_static PUBLIC ${BIGOBJ})
+endif()
 
 if (EMSCRIPTEN)
   set(TD_EMSCRIPTEN_SRC td/telegram/td_emscripten.cpp)
@@ -660,6 +682,9 @@ install(FILES ${TD_JSON_HEADERS} ${CMAKE_CURRENT_BINARY_DIR}/td/telegram/tdjson_
 install(FILES td/telegram/Client.h td/telegram/Log.h DESTINATION include/td/telegram)
 install(FILES td/tl/TlObject.h DESTINATION include/td/tl)
 install(FILES ${TL_TD_AUTO_INCLUDES}/td/telegram/td_api.h ${TL_TD_AUTO_INCLUDES}/td/telegram/td_api.hpp DESTINATION include/td/telegram)
+if (TD_API_JAVA_PACKAGE)
+  install(FILES td/tl/tl_jni_object.h DESTINATION include/td/tl)
+endif()
 
 include(CMakePackageConfigHelpers)
 write_basic_package_version_file("TdConfigVersion.cmake"
diff --git a/td/generate/tl_writer_java.cpp b/td/generate/tl_writer_java.cpp
index 0a681ca8b..1a2449e6e 100644
--- a/td/generate/tl_writer_java.cpp
+++ b/td/generate/tl_writer_java.cpp
@@ -449,7 +449,7 @@ std::string TD_TL_writer_java::gen_store_function_begin(const std::string &store
                                                     "        protected " +
                                                         storer_name + " appendLine(" + storer_name +
                                                         " s, int shift) {\n"
-                                                        "            s.append('\\n');\n"
+                                                        "            s.append(System.lineSeparator());\n"
                                                         "            for (int i = 0; i < shift; i++) {\n"
                                                         "                s.append(' ');\n"
                                                         "            }\n"
diff --git a/td/generate/tl_writer_jni_cpp.cpp b/td/generate/tl_writer_jni_cpp.cpp
index f7e1020e3..31de1bddc 100644
--- a/td/generate/tl_writer_jni_cpp.cpp
+++ b/td/generate/tl_writer_jni_cpp.cpp
@@ -77,113 +77,44 @@ std::string TD_TL_writer_jni_cpp::gen_vector_fetch(std::string field_name, const
                                                    int parser_type) const {
   std::string vector_type = gen_type_name(t);
 
-  std::string type;
-  std::string Type;
-
   if (vector_type == "bool") {
     assert(false);  // TODO
   }
 
+  std::string fetch_object = "jni::fetch_object(env, p, " + field_name + "fieldID)";
+  std::string array_type;
   if (vector_type == "std::int32_t") {
-    type = "int";
-    Type = "Int";
+    array_type = "jintArray";
   }
   if (vector_type == "std::int64_t") {
-    type = "long";
-    Type = "Long";
+    array_type = "jlongArray";
   }
   if (vector_type == "double") {
-    type = "double";
-    Type = "Double";
+    array_type = "jdoubleArray";
   }
 
-  std::string res_begin;
-  std::string res_end;
-  std::string fetch_object;
-  if (field_name.empty()) {
-    res_begin = "({ std::vector<" + vector_type + "> res_tmp_; ";
-    field_name = "res_tmp_";
-    res_end = " std::move(res_tmp_); })";
-    fetch_object = "p; ";
-  } else {
-    fetch_object = "jni::fetch_object(env, p, " + field_name + "fieldID); ";
-  }
-  std::string resize_vector;
-  if (!type.empty()) {
-    resize_vector = field_name + ".resize(length_tmp_); ";
-  } else {
-    resize_vector = field_name + ".reserve(length_tmp_); ";
+  if (!array_type.empty()) {
+    return "jni::fetch_vector(env, (" + array_type + ")" + fetch_object + ");";
   }
 
-  std::string res;
-  if (!type.empty()) {
-    res =
-        "{ "
-        "j" +
-        type + "Array arr_tmp_ = (j" + type + "Array)" + fetch_object +
-        "if (arr_tmp_) { "
-        "jsize length_tmp_ = env->GetArrayLength(arr_tmp_); " +
-        resize_vector + "env->Get" + Type + "ArrayRegion(arr_tmp_, 0, length_tmp_, reinterpret_cast<j" + type +
-        " *>(&" + field_name +
-        "[0])); "
-        "env->DeleteLocalRef(arr_tmp_); "
-        "} }";
-  } else if (vector_type == string_type) {
-    res =
-        "{ "
-        "jobjectArray arr_tmp_ = (jobjectArray)" +
-        fetch_object +
-        "if (arr_tmp_) { "
-        "jsize length_tmp_ = env->GetArrayLength(arr_tmp_); " +
-        resize_vector +
-        "for (jsize i_tmp_ = 0; i_tmp_ < length_tmp_; i_tmp_++) { "
-        "jstring str_tmp_ = (jstring)env->GetObjectArrayElement(arr_tmp_, i_tmp_); " +
-        field_name +
-        ".push_back(jni::from_jstring(env, str_tmp_)); "
-        "env->DeleteLocalRef(str_tmp_); "
-        "} "
-        "env->DeleteLocalRef(arr_tmp_); "
-        "} }";
+  std::string template_type;
+  if (vector_type == string_type) {
+    template_type = "std::string";
   } else if (vector_type.compare(0, 11, "std::vector") == 0) {
     const tl::tl_tree_type *child = static_cast<const tl::tl_tree_type *>(t->children[0]);
-
-    res =
-        "{ "
-        "jobjectArray arr_tmp_ = (jobjectArray)" +
-        fetch_object +
-        "if (arr_tmp_) { "
-        "jsize length_tmp_ = env->GetArrayLength(arr_tmp_); " +
-        resize_vector +
-        "for (jsize i_tmp_ = 0; i_tmp_ < length_tmp_; i_tmp_++) { "
-        "jobject p = env->GetObjectArrayElement(arr_tmp_, i_tmp_); " +
-        field_name + ".push_back(" + gen_vector_fetch("", child, vars, parser_type) +
-        "); "
-        "if (p) { env->DeleteLocalRef(p); "
-        "} } "
-        "env->DeleteLocalRef(arr_tmp_); "
-        "} }";
+    template_type = gen_type_name(child);
+    if (template_type.compare(0, 10, "object_ptr") == 0) {
+      template_type = gen_main_class_name(child->type);
+    }
+    template_type = "std::vector<" + template_type + ">";
   } else if (vector_type == bytes_type) {
     std::fprintf(stderr, "Vector of Bytes is not supported\n");
     assert(false);
   } else {
     assert(vector_type.compare(0, 10, "object_ptr") == 0);
-    res =
-        "{ "
-        "jobjectArray arr_tmp_ = (jobjectArray)" +
-        fetch_object +
-        "if (arr_tmp_) { "
-        "jsize length_tmp_ = env->GetArrayLength(arr_tmp_); " +
-        resize_vector +
-        "for (jsize i_tmp_ = 0; i_tmp_ < length_tmp_; i_tmp_++) { "
-        "jobject o_ = env->GetObjectArrayElement(arr_tmp_, i_tmp_); " +
-        field_name + ".push_back(" + gen_main_class_name(t->type) +
-        "::fetch(env, o_)); "
-        "if (o_) { env->DeleteLocalRef(o_); "
-        "} } "
-        "env->DeleteLocalRef(arr_tmp_); "
-        "} }";
+    template_type = gen_main_class_name(t->type);
   }
-  return res_begin + res + res_end;
+  return "jni::FetchVector<" + template_type + ">::fetch(env, (jobjectArray)" + fetch_object + ");";
 }
 
 std::string TD_TL_writer_jni_cpp::gen_type_fetch(const std::string &field_name, const tl::tl_tree_type *tree_type,
@@ -229,7 +160,7 @@ std::string TD_TL_writer_jni_cpp::gen_type_fetch(const std::string &field_name,
   }
 
   if (name == "Bool") {
-    res = "env->GetBooleanField(p, " + field_name + "fieldID)";
+    res = "(env->GetBooleanField(p, " + field_name + "fieldID) != 0)";
   } else if (name == "Int32") {
     res = "env->GetIntField(p, " + field_name + "fieldID)";
   } else if (name == "Int53" || name == "Int64") {
@@ -242,13 +173,13 @@ std::string TD_TL_writer_jni_cpp::gen_type_fetch(const std::string &field_name,
     res = "jni::from_bytes(env, (jbyteArray)jni::fetch_object(env, p, " + field_name + "fieldID))";
   } else if (name == "Vector") {
     const tl::tl_tree_type *child = static_cast<const tl::tl_tree_type *>(tree_type->children[0]);
-    return gen_vector_fetch(field_name, child, vars, parser_type);
+    res = gen_vector_fetch(field_name, child, vars, parser_type);
   } else {
     if (field_name == "") {
       return gen_main_class_name(tree_type->type) + "::fetch(env, p)";
     }
-    res = "({jobject jobject_tmp_ = jni::fetch_object(env, p, " + field_name + "fieldID); " +
-          gen_main_class_name(tree_type->type) + "::fetch(env, jobject_tmp_);})";
+    res = "jni::fetch_tl_object<" + gen_main_class_name(tree_type->type) + ">(env, jni::fetch_object(env, p, " +
+          field_name + "fieldID));";
   }
   return res_begin + res;
 }
@@ -523,7 +454,8 @@ std::string TD_TL_writer_jni_cpp::gen_store_function_begin(const std::string &st
          "void " +
          class_name + "::store(" + storer_name + " &s" +
          std::string(storer_type <= 0 ? "" : ", const char *field_name") + ") const {\n" +
-         (storer_type <= 0 ? "  if (!(s = env->AllocObject(Class))) { return; }\n"
+         (storer_type <= 0 ? "  s = env->AllocObject(Class);\n"
+                             "  if (!s) { return; }\n"
                            : "  if (!LOG_IS_STRIPPED(ERROR)) {\n"
                              "    s.store_class_begin(field_name, \"" +
                                  get_pretty_class_name(class_name) + "\");\n");
diff --git a/td/telegram/DeviceTokenManager.cpp b/td/telegram/DeviceTokenManager.cpp
index 608483ae3..e4a8df0e8 100644
--- a/td/telegram/DeviceTokenManager.cpp
+++ b/td/telegram/DeviceTokenManager.cpp
@@ -17,6 +17,7 @@
 #include "td/utils/format.h"
 #include "td/utils/logging.h"
 #include "td/utils/Status.h"
+#include "td/utils/StringBuilder.h"
 #include "td/utils/tl_helpers.h"
 
 #include <type_traits>
@@ -245,8 +246,8 @@ void DeviceTokenManager::loop() {
       net_query = G()->net_query_creator().create(
           create_storer(telegram_api::account_unregisterDevice(token_type, info.token, std::move(other_user_ids))));
     } else {
-      net_query = G()->net_query_creator().create(create_storer(
-          telegram_api::account_registerDevice(token_type, info.token, info.is_app_sandbox, std::move(other_user_ids))));
+      net_query = G()->net_query_creator().create(create_storer(telegram_api::account_registerDevice(
+          token_type, info.token, info.is_app_sandbox, std::move(other_user_ids))));
     }
     info.net_query_id = net_query->id();
     G()->net_query_dispatcher().dispatch_with_callback(std::move(net_query), actor_shared(this, token_type));
diff --git a/td/tl/tl_jni_object.cpp b/td/tl/tl_jni_object.cpp
index 88a3b9495..a4846c625 100644
--- a/td/tl/tl_jni_object.cpp
+++ b/td/tl/tl_jni_object.cpp
@@ -32,7 +32,7 @@ jmethodID DoubleGetValueMethodID;
 jclass get_jclass(JNIEnv *env, const char *class_name) {
   jclass clazz = env->FindClass(class_name);
   if (!clazz) {
-    LOG(INFO, "Can't find class [%s]", class_name);
+    LOG(INFO) << "Can't find class [" << class_name << "]";
     env->ExceptionClear();
     return clazz;
   }
@@ -41,7 +41,7 @@ jclass get_jclass(JNIEnv *env, const char *class_name) {
   env->DeleteLocalRef(clazz);
 
   if (!clazz_global) {
-    LOG(ERROR, "Can't create global reference to [%s]", class_name);
+    LOG(ERROR) << "Can't create global reference to [" << class_name << "]";
     env->FatalError("Can't create global reference");
   }
 
@@ -55,7 +55,7 @@ jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name, const char
       return res;
     }
 
-    LOG(ERROR, "Can't find method %s %s", name, sig);
+    LOG(ERROR) << "Can't find method [" << name << "] with signature [" << sig << "]";
     env->FatalError("Can't find method");
   }
   return nullptr;
@@ -68,7 +68,7 @@ jfieldID get_field_id(JNIEnv *env, jclass clazz, const char *name, const char *s
     return res;
   }
 
-  LOG(ERROR, "Can't find field name=(%s) sig=(%s)", name, sig);
+  LOG(ERROR) << "Can't find field [" << name << "] with signature [" << sig << "]";
   env->FatalError("Can't find field");
   return 0;
 }
@@ -229,8 +229,10 @@ std::string from_bytes(JNIEnv *env, jbyteArray arr) {
   std::string b;
   if (arr != nullptr) {
     jsize length = env->GetArrayLength(arr);
-    b.resize(narrow_cast<size_t>(length));
-    env->GetByteArrayRegion(arr, 0, length, reinterpret_cast<jbyte *>(&b[0]));
+    if (length != 0) {
+      b.resize(narrow_cast<size_t>(length));
+      env->GetByteArrayRegion(arr, 0, length, reinterpret_cast<jbyte *>(&b[0]));
+    }
     env->DeleteLocalRef(arr);
   }
   return b;
@@ -240,7 +242,7 @@ jbyteArray to_bytes(JNIEnv *env, const std::string &b) {
   static_assert(sizeof(char) == sizeof(jbyte), "Mismatched jbyte size");
   jsize length = narrow_cast<jsize>(b.size());
   jbyteArray arr = env->NewByteArray(length);
-  if (arr != nullptr) {
+  if (arr != nullptr && length != 0) {
     env->SetByteArrayRegion(arr, 0, length, reinterpret_cast<const jbyte *>(b.data()));
   }
   return arr;
@@ -250,7 +252,7 @@ jintArray store_vector(JNIEnv *env, const std::vector<std::int32_t> &v) {
   static_assert(sizeof(std::int32_t) == sizeof(jint), "Mismatched jint size");
   jsize length = narrow_cast<jsize>(v.size());
   jintArray arr = env->NewIntArray(length);
-  if (arr) {
+  if (arr != nullptr && length != 0) {
     env->SetIntArrayRegion(arr, 0, length, reinterpret_cast<const jint *>(&v[0]));
   }
   return arr;
@@ -260,7 +262,7 @@ jlongArray store_vector(JNIEnv *env, const std::vector<std::int64_t> &v) {
   static_assert(sizeof(std::int64_t) == sizeof(jlong), "Mismatched jlong size");
   jsize length = narrow_cast<jsize>(v.size());
   jlongArray arr = env->NewLongArray(length);
-  if (arr) {
+  if (arr != nullptr && length != 0) {
     env->SetLongArrayRegion(arr, 0, length, reinterpret_cast<const jlong *>(&v[0]));
   }
   return arr;
@@ -270,7 +272,7 @@ jdoubleArray store_vector(JNIEnv *env, const std::vector<double> &v) {
   static_assert(sizeof(double) == sizeof(jdouble), "Mismatched jdouble size");
   jsize length = narrow_cast<jsize>(v.size());
   jdoubleArray arr = env->NewDoubleArray(length);
-  if (arr) {
+  if (arr != nullptr && length != 0) {
     env->SetDoubleArrayRegion(arr, 0, length, reinterpret_cast<const jdouble *>(&v[0]));
   }
   return arr;
@@ -279,7 +281,7 @@ jdoubleArray store_vector(JNIEnv *env, const std::vector<double> &v) {
 jobjectArray store_vector(JNIEnv *env, const std::vector<std::string> &v) {
   jsize length = narrow_cast<jsize>(v.size());
   jobjectArray arr = env->NewObjectArray(length, StringClass, 0);
-  if (arr) {
+  if (arr != nullptr) {
     for (jsize i = 0; i < length; i++) {
       jstring str = to_jstring(env, v[i]);
       if (str) {
@@ -291,5 +293,44 @@ jobjectArray store_vector(JNIEnv *env, const std::vector<std::string> &v) {
   return arr;
 }
 
+std::vector<std::int32_t> fetch_vector(JNIEnv *env, jintArray arr) {
+  std::vector<std::int32_t> result;
+  if (arr != nullptr) {
+    jsize length = env->GetArrayLength(arr);
+    if (length != 0) {
+      result.resize(length);
+      env->GetIntArrayRegion(arr, 0, length, reinterpret_cast<jint *>(&result[0]));
+    }
+    env->DeleteLocalRef(arr);
+  }
+  return result;
+}
+
+std::vector<std::int64_t> fetch_vector(JNIEnv *env, jlongArray arr) {
+  std::vector<std::int64_t> result;
+  if (arr != nullptr) {
+    jsize length = env->GetArrayLength(arr);
+    if (length != 0) {
+      result.resize(length);
+      env->GetLongArrayRegion(arr, 0, length, reinterpret_cast<jlong *>(&result[0]));
+    }
+    env->DeleteLocalRef(arr);
+  }
+  return result;
+}
+
+std::vector<double> fetch_vector(JNIEnv *env, jdoubleArray arr) {
+  std::vector<double> result;
+  if (arr != nullptr) {
+    jsize length = env->GetArrayLength(arr);
+    if (length != 0) {
+      result.resize(length);
+      env->GetDoubleArrayRegion(arr, 0, length, reinterpret_cast<jdouble *>(&result[0]));
+    }
+    env->DeleteLocalRef(arr);
+  }
+  return result;
+}
+
 }  // namespace jni
 }  // namespace td
diff --git a/td/tl/tl_jni_object.h b/td/tl/tl_jni_object.h
index 17549740a..da83e8405 100644
--- a/td/tl/tl_jni_object.h
+++ b/td/tl/tl_jni_object.h
@@ -74,7 +74,7 @@ template <class T>
 jobjectArray store_vector(JNIEnv *env, const std::vector<T> &v) {
   jint length = static_cast<jint>(v.size());
   jobjectArray arr = env->NewObjectArray(length, T::element_type::Class, jobject());
-  if (arr) {
+  if (arr != nullptr) {
     for (jint i = 0; i < length; i++) {
       if (v[i] != nullptr) {
         jobject stored_object;
@@ -114,7 +114,7 @@ template <class T>
 jobjectArray store_vector(JNIEnv *env, const std::vector<std::vector<T>> &v) {
   jint length = static_cast<jint>(v.size());
   jobjectArray arr = env->NewObjectArray(length, get_array_class<typename T::element_type>::get(), 0);
-  if (arr) {
+  if (arr != nullptr) {
     for (jint i = 0; i < length; i++) {
       auto stored_array = store_vector(env, v[i]);
       if (stored_array) {
@@ -126,5 +126,73 @@ jobjectArray store_vector(JNIEnv *env, const std::vector<std::vector<T>> &v) {
   return arr;
 }
 
+template <class T>
+auto fetch_tl_object(JNIEnv *env, jobject obj) {
+  decltype(T::fetch(env, obj)) result;
+  if (obj != nullptr) {
+    result = T::fetch(env, obj);
+    env->DeleteLocalRef(obj);
+  }
+  return result;
+}
+
+std::vector<std::int32_t> fetch_vector(JNIEnv *env, jintArray arr);
+
+std::vector<std::int64_t> fetch_vector(JNIEnv *env, jlongArray arr);
+
+std::vector<double> fetch_vector(JNIEnv *env, jdoubleArray arr);
+
+template <class T>
+struct FetchVector {
+  static auto fetch(JNIEnv *env, jobjectArray arr) {
+    std::vector<decltype(fetch_tl_object<T>(env, jobject()))> result;
+    if (arr != nullptr) {
+      jsize length = env->GetArrayLength(arr);
+      result.reserve(length);
+      for (jsize i = 0; i < length; i++) {
+        result.push_back(fetch_tl_object<T>(env, env->GetObjectArrayElement(arr, i)));
+      }
+      env->DeleteLocalRef(arr);
+    }
+    return result;
+  }
+};
+
+template <>
+struct FetchVector<std::string> {
+  static std::vector<std::string> fetch(JNIEnv *env, jobjectArray arr) {
+    std::vector<std::string> result;
+    if (arr != nullptr) {
+      jsize length = env->GetArrayLength(arr);
+      result.reserve(length);
+      for (jsize i = 0; i < length; i++) {
+        jstring str = (jstring)env->GetObjectArrayElement(arr, i);
+        result.push_back(jni::from_jstring(env, str));
+        if (str) {
+          env->DeleteLocalRef(str);
+        }
+      }
+      env->DeleteLocalRef(arr);
+    }
+    return result;
+  }
+};
+
+template <class T>
+struct FetchVector<std::vector<T>> {
+  static auto fetch(JNIEnv *env, jobjectArray arr) {
+    std::vector<decltype(FetchVector<T>::fetch(env, jobjectArray()))> result;
+    if (arr != nullptr) {
+      jsize length = env->GetArrayLength(arr);
+      result.reserve(length);
+      for (jsize i = 0; i < length; i++) {
+        result.push_back(FetchVector<T>::fetch(env, (jobjectArray)env->GetObjectArrayElement(arr, i)));
+      }
+      env->DeleteLocalRef(arr);
+    }
+    return result;
+  }
+};
+
 }  // namespace jni
 }  // namespace td
diff --git a/td/tl/tl_json.h b/td/tl/tl_json.h
index 22b7b347e..e407bfba1 100644
--- a/td/tl/tl_json.h
+++ b/td/tl/tl_json.h
@@ -165,10 +165,6 @@ class DowncastHelper : public T {
   int32 get_id() const override {
     return constructor_;
   }
-  void store(TlStorerUnsafe &s) const override {
-  }
-  void store(TlStorerCalcLength &s) const override {
-  }
   void store(TlStorerToString &s, const char *field_name) const override {
   }