52 lines
1.1 KiB
Python
52 lines
1.1 KiB
Python
"""Abstract base classes for kernel client channels"""
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# Copyright (c) Jupyter Development Team.
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# Distributed under the terms of the Modified BSD License.
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import abc
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class ChannelABC(metaclass=abc.ABCMeta):
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"""A base class for all channel ABCs."""
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@abc.abstractmethod
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def start(self) -> None:
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"""Start the channel."""
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pass
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@abc.abstractmethod
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def stop(self) -> None:
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"""Stop the channel."""
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pass
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@abc.abstractmethod
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def is_alive(self) -> bool:
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"""Test whether the channel is alive."""
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pass
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class HBChannelABC(ChannelABC):
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"""HBChannel ABC.
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The docstrings for this class can be found in the base implementation:
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`jupyter_client.channels.HBChannel`
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"""
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@abc.abstractproperty
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def time_to_dead(self) -> float:
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pass
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@abc.abstractmethod
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def pause(self) -> None:
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"""Pause the heartbeat channel."""
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pass
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@abc.abstractmethod
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def unpause(self) -> None:
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"""Unpause the heartbeat channel."""
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pass
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@abc.abstractmethod
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def is_beating(self) -> bool:
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"""Test whether the channel is beating."""
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pass
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