code: def ask_unicode_16(self, next_rva_ptr):
          
          if self.__get_word_value_at_rva(next_rva_ptr-2) == 0:
              self.length = next_rva_ptr - self.rva_ptr
              return True
  
          return False
docs: 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.