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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 isCode(self, blockOrBlockNumber, column):
 """Check if text at given position is a code. If language is not known, or text is not parsed yet, ``True`` is returned """

        if isinstance(blockOrBlockNumber, QTextBlock):
            block = blockOrBlockNumber
        else:
            block = self.document().findBlockByNumber(blockOrBlockNumber)

        return self._highlighter is None or \
               self._highlighter.isCode(block, column)