(self)
Iterate through the callstack, from top to bottom
        (most recent first).
Iterate through the callstack, from top to bottom
        (most recent first).
Iterate through the callstack from top to bottom ( most recent first ) .
def __iter__(self) -> Iterator['CallStack']:
        """
        Iterate through the callstack, from top to bottom
        (most recent first).
        """
        i = self
        while i is not None:
            yield i
            i = i.next
def __iter__ ( self ) -> Iterator [ 'CallStack' ] : i = self while i is not None : yield i i = i . next