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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def ask_unicode_16(self, next_rva_ptr):
 """The next RVA is taken to be the one immediately following this one. Such RVA could indicate the natural end of the string and will be checked to see if there's a Unicode NULL character there. """

        if self.__get_word_value_at_rva(next_rva_ptr-2) == 0:
            self.length = next_rva_ptr - self.rva_ptr
            return True

        return False