# Path: telethon/_events/filters/base.py
# class Filter(abc.ABC):
#     @abc.abstractmethod
#     def __call__(self, event):
#         return True
# 
#     def __and__(self, other):
#         return And(self, other)
# 
#     def __or__(self, other):
#         return Or(self, other)
# 
#     def __invert__(self):
#         return Not(self)


import abc
import functools
from .filters import Filter
        ...     await event.delete()
        ...     # No other event handler will have a chance to handle this event
        ...     raise StopPropagation
        ...
        >>> @client.on(events.NewMessage)
        ... async def _(event):
        ...     # Will never be reached, because it is the second handler
        ...     pass
    """
    # For some reason Sphinx wants the silly >>> or
    # it will show warnings and look bad when generated.
    pass


class EventBuilder(abc.ABC):
    @classmethod
    @abc.abstractmethod
    def _build(cls, client, update, entities):
        """
        Builds an event for the given update if possible, or returns None.

        `entities` must have `get(Peer) -> User|Chat` and `self_id`,
        which must be the current user's ID.
        """


@functools.total_ordering
class EventHandler:
    __slots__ = ('_event', '_callback', '_priority', '_filter')


# Path: telethon/_events/filters/base.py
# class Filter(abc.ABC):
#     @abc.abstractmethod
#     def __call__(self, event):
#         return True
# 
#     def __and__(self, other):
#         return And(self, other)
# 
#     def __or__(self, other):
#         return Or(self, other)
# 
#     def __invert__(self):
#         return Not(self)


# Path: telethon/_events/base.py
import abc
import functools
from .filters import Filter

        ...     await event.delete()
        ...     # No other event handler will have a chance to handle this event
        ...     raise StopPropagation
        ...
        >>> @client.on(events.NewMessage)
        ... async def _(event):
        ...     # Will never be reached, because it is the second handler
        ...     pass
    """
    # For some reason Sphinx wants the silly >>> or
    # it will show warnings and look bad when generated.
    pass


class EventBuilder(abc.ABC):
    @classmethod
    @abc.abstractmethod
    def _build(cls, client, update, entities):
        """
        Builds an event for the given update if possible, or returns None.

        `entities` must have `get(Peer) -> User|Chat` and `self_id`,
        which must be the current user's ID.
        """


@functools.total_ordering
class EventHandler:
    __slots__ = ('_event', '_callback', '_priority', '_filter')


    def __init__(self, event: EventBuilder, callback: callable, priority: int, filter: Filter):