2022-04-06 12:59:04 +00:00
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#
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2023-11-21 20:29:58 +00:00
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# This file is licensed under the Affero General Public License (AGPL) version 3.
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#
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2024-01-23 11:26:48 +00:00
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# Copyright 2022 The Matrix.org Foundation C.I.C.
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2023-11-21 20:29:58 +00:00
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# Copyright (C) 2023 New Vector, Ltd
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# See the GNU Affero General Public License for more details:
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# <https://www.gnu.org/licenses/agpl-3.0.html>.
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#
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# Originally licensed under the Apache License, Version 2.0:
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# <http://www.apache.org/licenses/LICENSE-2.0>.
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#
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# [This file includes modifications made by New Vector Limited]
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2022-04-06 12:59:04 +00:00
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#
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#
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from abc import ABC, abstractmethod
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from typing import Iterable
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from prometheus_client import Metric
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try:
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from prometheus_client.registry import Collector
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except ImportError:
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# prometheus_client.Collector is new as of prometheus 0.14. We redefine it here
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# for compatibility with earlier versions.
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class _Collector(ABC):
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@abstractmethod
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def collect(self) -> Iterable[Metric]:
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pass
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Collector = _Collector # type: ignore
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