def get_files_types(self):
        """
        Return the files inside the APK with their associated types (by using python-magic)

        :rtype: a dictionnary
        """
        if self._files == {}:
            # Generate File Types / CRC List
            for i in self.get_files():
                buffer = self.zip.read(i)
                self.files_crc32[i] = crc32(buffer)
                # FIXME why not use the crc from the zipfile?
                # should be validated as well.
                # crc = self.zip.getinfo(i).CRC
                self._files[i] = self._get_file_magic_name(buffer)

        return self._files
Return the files inside the APK with their associated types (by using python-magic)

        :rtype: a dictionnary