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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 extraSelections(self):
 """ In normal mode - QTextEdit.ExtraSelection which highlightes the cursor """

        if not isinstance(self._mode, Normal):
            return []

        selection = QTextEdit.ExtraSelection()
        selection.format.setBackground(QColor('#ffcc22'))
        selection.format.setForeground(QColor('#000000'))
        selection.cursor = self._qpart.textCursor()
        selection.cursor.movePosition(QTextCursor.NextCharacter, QTextCursor.KeepAnchor)

        return [selection]