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add check for lower bound of lark (#4287)
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@ -1,6 +1,13 @@
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from typing import Any, Optional, Sequence, Union
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try:
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import lark
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from packaging import version
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if version.parse(lark.__version__) < version.parse("1.1.5"):
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raise ValueError(
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f"Lark should be at least version 1.1.5, got {lark.__version__}"
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)
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from lark import Lark, Transformer, v_args
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except ImportError:
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pass
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