how to clear selection in the qtableview

[wenn32]

hello i am new in using qtableview and i just wanted to know how do you clear the selection using QStandardItemModel

i used the following functions

main_tableview->setSelectionBehavior(QAbstractItemView::SelectRows);
main_tableview->setSelectionMode(QAbstractItemView::SingleSelection);

main_tableview->setSelectionBehavior(QAbstractItemView::SelectRows);
main_tableview->setSelectionMode(QAbstractItemView::SingleSelection);

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main_tableview is the qtableview object

now when i click any one of the item it selects the entire row(as i have set the properties above)

now how do i deselect or clear the selection???
i looked into the documentation but could not find any functions.
Thanks for the help!