def repack_inject(self, repack_dir: PurePath, target_pak_path: Path):
 
        footer_len = TencentPakInfo._mem_size(self._pak_info.version)
        with open(target_pak_path, 'rb') as f:
            f.seek(-footer_len, os.SEEK_END)
            original_footer = bytearray(f.read(footer_len))
        with open(target_pak_path, 'a+b') as target_file:
            
            for dir_path, dir_content in self._index.items():
                for file_name, entry in dir_content.items():
                    
                    selected_path = None
                    if is_auto_scan:
                        candidates = user_files_map.get(file_name)
                        if candidates: selected_path = candidates[0] 
                    else:
                        check_path = repack_base_path / dir_path / file_name
                        if check_path.exists(): selected_path = check_path

                    if not selected_path:
                        continue

                    files_processed_count += 1
                    internal_pak_path = dir_path / file_name                    
                    try:                        
                        with open(selected_path, 'rb') as f_modified:
                            raw_data = f_modified.read()

                        entry.content_hash = SHA1.new(raw_data).digest()
                        entry.uncompressed_size = len(raw_data)
                        entry.compression_method = CM_ZLIB
                        entry.encryption_method = 44
                        entry.encrypted = True
                        entry.compression_block_size = 65536  
                        
                        target_file.seek(0, os.SEEK_END)
                        entry.offset = target_file.tell()
                        
                        entry.compressed_blocks = []
                        total_compressed_size = 0
                        
                        chunks = [raw_data[i:i+entry.compression_block_size] for i in range(0, len(raw_data), entry.compression_block_size)]
                        
                        for i, chunk in enumerate(chunks):
 
                            comp_chunk = zlib.compress(chunk, level=9)
                            enc_chunk = PakCrypto.encrypt_block(comp_chunk, internal_pak_path, entry.encryption_method)
                            
                            start_offset = target_file.tell()
                            target_file.write(enc_chunk)
                            end_offset = target_file.tell()
                            
                            block = PakCompressedBlock.new(PakCompressedBlock)
                            block.start = start_offset
                            block.end = end_offset
                            entry.compressed_blocks.append(block)
                            
                            total_compressed_size += (end_offset - start_offset)
                            sys.stdout.flush()

                        entry.size = total_compressed_size
                        repacked_success_list.append(file_name)

            if files_processed_count == 0: 
                return False 
            raw_new_index = self._pack_index()            
            if self._pak_info.index_encrypted:
                if self._pak_info.version > 7:
                    aes_key = PakCrypto.rsa_extract(self._pak_info.packed_key, RSA_MOD_1)
                    aes_iv = PakCrypto.rsa_extract(self._pak_info.packed_iv, RSA_MOD_1)
                    aes = AES.new(aes_key, MODE_CBC, aes_iv[:16])
                    enc_new_index = aes.encrypt(pad(raw_new_index, AES.block_size))
                else:
                    enc_new_index = PakCrypto._encrypt_simple1(raw_new_index)
            else:
                enc_new_index = raw_new_index

Here's a sample for your reference.

✅AIM ROYALE,PHÒNG,TDM,GIẢI
✅FOV AIM
✅KHOẢNG CÁCH
✅AIM DỰ ĐOÁN
✅LỰA CHỌN MỤC TIÊU
✅BỎ QUA KNOCK
✅BỎ QUA BOT
✅CHECK TƯỜNG
✅AUTO SHOTGUN 30M
✅AUTO SNIP GHIM ĐẦU

✅WALL CHECK MÀU TỪNG VỊ TRÍ
✅LỘ CHỖ NÀO ĐỔI MÀU CHỖ ĐÓ
✅6 MÀU + NHÁY 7 MÀU

✅ESP MÁU
✅ESP TÊN
✅ESP KHOẢNG CÁCH
✅ESP XE
✅CẢNH BÁO BOM NỔ
✅CẢNH BÁO BOM LỬA
✅CẢNH BÁO BOM KHÓI
✅CẢNH BÁO 360

✅MAGIC CUSTOM ĐẦU
✅MAGIC CUSTOM THÂN
✅MAGIC CUSTOM CHÂN

✅XÓA CỎ
✅XÓA CÂY
✅XÓA NƯỚC
✅XÓA SƯƠNG MÙ

✅UNLOCK FULL ĐỒ HỌA
✅UNLOCK IPAD VIEW

🔥CUSTOM PAK
✅REPACK FILES REGARDLESS OF SIZE
✅BYPASS HASH CHECK, PREVENTS BAN, NO FIREWALL REQUIRED
✅REPACK ALL YOUR FILES