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# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
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# under the License.
from __future__ import annotations

import attrs

from airflow.sdk.definitions.partition_mappers.base import PartitionMapper


@attrs.define(init=False)
class ProductMapper(PartitionMapper):
    """Partition mapper that combines multiple mappers into a multi-dimensional key."""

    mappers: list[PartitionMapper]
    delimiter: str

    def __init__(
        self,
        mapper0: PartitionMapper,
        mapper1: PartitionMapper,
        /,
        *mappers: PartitionMapper,
        delimiter: str = "|",
        max_downstream_keys: int | None = None,
    ) -> None:
        self.__attrs_init__(
            mappers=[mapper0, mapper1, *mappers],
            delimiter=delimiter,
            max_downstream_keys=max_downstream_keys,
        )
