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File: //home/arjun/projects/env/lib64/python3.10/site-packages/blinker/__pycache__/base.cpython-310.pyc
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A small implementation of signals, inspired by a snippet of Django signal
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each manages its own receivers and message emission.

The :func:`signal` function provides singleton behavior for named signals.

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        called explicitly.

        The disconnect signal can not be emitted by an automatic disconnect
        (due to a weakly referenced receiver or sender going out of scope),
        as the receiver and/or sender instances are no longer available for
        use at the time this signal would be emitted.

        An alternative approach is available by subscribing to
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        :param sender: Any object or :obj:`ANY`, defaults to ``ANY``.
          Restricts notifications delivered to *receiver* to only those
          :meth:`send` emissions sent by *sender*.  If ``ANY``, the receiver
          will always be notified.  A *receiver* may be connected to
          multiple *sender* values on the same Signal through multiple calls
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          decorated multiple times with differing *sender* values.

        :param weak: If true, the Signal will hold a weakref to the
          decorated function and automatically disconnect when *receiver*
          goes out of scope or is garbage collected.  Unlike
          :meth:`connect`, this defaults to False.

        The decorated function will be invoked by :meth:`send` with
          `sender=` as a single positional argument and any ``kwargs`` that
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        the duration of the ``with`` block, and will be disconnected
        automatically when exiting the block:

        .. code-block:: python

          with on_ready.connected_to(receiver):
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          with ``None``.  Only accepts one positional argument.
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        :param sender: Any object or ``None``.  If omitted, synonymous
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        :param _sync_wrapper: A callable that should wrap a synchronous
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        adversely affected by this bookkeeping.

        With a long-running Python process performing dynamic signal routing
        with high volume- e.g. connecting to function closures, "senders" are
        all unique object instances, and doing all of this over and over- you
        may see memory usage will grow due to extraneous bookkeeping. (An empty
        set() for each stale sender/receiver pair.)

        This method will prune that bookkeeping away, with the caveat that such
        pruning is not threadsafe. The risk is that cleanup of a fully
        disconnected receiver/sender pair occurs while another thread is
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Sent by a :class:`Signal` after a receiver connects.

:argument: the Signal that was connected to
:keyword receiver_arg: the connected receiver
:keyword sender_arg: the sender to connect to
:keyword weak_arg: true if the connection to receiver_arg is a weak reference

.. deprecated:: 1.2

As of 1.2, individual signals have their own private
:attr:`~Signal.receiver_connected` and
:attr:`~Signal.receiver_disconnected` signals with a slightly simplified
call signature.  This global signal is planned to be removed in 1.6.

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