JFIFxxC      C  " }!1AQa"q2#BR$3br %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz w!1AQaq"2B #3Rbrfrom typing import List, TypeVar T = TypeVar("T") class Stack(List[T]): """A small shim over builtin list.""" @property def top(self) -> T: """Get top of stack.""" return self[-1] def push(self, item: T) -> None: """Push an item on to the stack (append in stack nomenclature).""" self.append(item)