15 lines
487 B
Python
15 lines
487 B
Python
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from __future__ import annotations
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from typing import TYPE_CHECKING, Any, TypeVar
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if TYPE_CHECKING:
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from narwhals._sql.dataframe import SQLLazyFrame
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from narwhals._sql.expr import SQLExpr
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SQLExprAny = SQLExpr[Any, Any]
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SQLLazyFrameAny = SQLLazyFrame[Any, Any, Any]
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SQLExprT = TypeVar("SQLExprT", bound="SQLExprAny")
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SQLExprT_contra = TypeVar("SQLExprT_contra", bound="SQLExprAny", contravariant=True)
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SQLLazyFrameT = TypeVar("SQLLazyFrameT", bound="SQLLazyFrameAny")
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