Multicolumn footnotes

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\usepackage[extrafootnotefeatures]{bidi}
% \twocolumnfootnotes
\threecolumnfootnotes
% \fourcolumnfootnotes
% \fivecolumnfootnotes
% \sixcolumnfootnotes
% \sevencolumnfootnotes
% \eightcolumnfootnotes
% \ninecolumnfootnotes
% \tencolumnfootnotes