text: import sys
  from typing import Any, Callable, Dict, List, NamedTuple, Optional, Text, Tuple
  
  class Event(NamedTuple):
      time: float
      priority: Any
      action: Callable[..., Any]
      argument: Tuple[Any, ...]
      kwargs: Dict[Text, Any]
  
  class scheduler:
      if sys.version_info >= (3, 3):
          def __init__(self, timefunc: Callable[[], float] = ..., delayfunc: Callable[[float], None] = ...) -> None: ...
          def enterabs(
              self,
              time: float,
              priority: Any,
              action: Callable[..., Any],
              argument: Tuple[Any, ...] = ...,
              kwargs: Dict[str, Any] = ...,
          ) -> Event: ...
          def enter(
              self,
              delay: float,
              priority: Any,
              action: Callable[..., Any],
              argument: Tuple[Any, ...] = ...,
              kwargs: Dict[str, Any] = ...,
          ) -> Event: ...
          def run(self, blocking: bool = ...) -> Optional[float]: ...
      else:
          def __init__(self, timefunc: Callable[[], float], delayfunc: Callable[[float], None]) -> None: ...
          def enterabs(self, time: float, priority: Any, action: Callable[..., Any], argument: Tuple[Any, ...]) -> Event: ...
          def enter(self, delay: float, priority: Any, action: Callable[..., Any], argument: Tuple[Any, ...]) -> Event: ...
          def run(self) -> None: ...
      def cancel(self, event: Event) -> None: ...
      def empty(self) -> bool: ...
      @property
      def queue(self) -> List[Event]: ...
  