def x0 ( ) : pass def x1 ( arg1 ) : pass def x2 ( arg1 , arg2 ) : pass def x3a ( * args ) : pass def x3b ( ** kwargs ) : pass def x3c ( * args , ** kwargs ) : pass def x4a ( foo , bar = 1 , bla = 2 , * args ) : pass def x4b ( foo , bar = 1 , bla = 2 , ** kwargs ) : pass def x4c ( foo , bar = 1 , bla = 2 , * args , ** kwargs ) : pass def x5a ( * , bar = 1 ) : pass def x5b ( * , bar = 1 , ** kwargs ) : pass def x6a ( foo , * , bar = 1 ) : pass def x7a ( foo , * , bar = 1 , ** kwargs ) : pass