<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def removeRow(self, row, parent):
 """Remove row from parent :param row: the row index :type row: int :param parent: the parent index :type parent: :class:`QtCore.QModelIndex` :returns: True if row is inserted; otherwise returns false. :rtype: bool :raises: None """

        if parent.isValid():
            parentitem = parent.internalPointer()
        else:
            parentitem = self._root
        self.beginRemoveRows(parent, row, row)
        item = parentitem.childItems[row]
        item.set_model(None)
        item._parent = None
        del parentitem.childItems[row]
        self.endRemoveRows()
        return True