def _is_one_arg_pos_call(call):
 return (isinstance(call, astroid.CallFunc) and (len(call.args) == 1) and (not isinstance(call.args[0], astroid.Keyword)))

def _is_one_arg_pos_call ( call ) : return ( isinstance ( call , astroid . CallFunc ) and ( len ( call . args ) == 1 ) and ( not isinstance ( call . args [ 0 ] , astroid . Keyword ) ) )
is this a call with exactly 1 argument .