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2# Licensed to the Apache Software Foundation (ASF) under one
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7# "License"); you may not use this file except in compliance
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9#
10# http://www.apache.org/licenses/LICENSE-2.0
11#
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18"""Sends lineage metadata to a backend."""
19
20from __future__ import annotations
21
22from typing import TYPE_CHECKING
23
24if TYPE_CHECKING:
25 from airflow.models.baseoperator import BaseOperator
26
27
28class LineageBackend:
29 """Sends lineage metadata to a backend."""
30
31 def send_lineage(
32 self,
33 operator: BaseOperator,
34 inlets: list | None = None,
35 outlets: list | None = None,
36 context: dict | None = None,
37 ):
38 """
39 Send lineage metadata to a backend.
40
41 :param operator: the operator executing a transformation on the inlets and outlets
42 :param inlets: the inlets to this operator
43 :param outlets: the outlets from this operator
44 :param context: the current context of the task instance
45 """
46 raise NotImplementedError()