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Import data_loader only under TYPE_CHECKING (annotation-only import) #1020

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Import data_loader only under TYPE_CHECKING (annotation-only import) #1020

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6 changes: 4 additions & 2 deletions src/openpi/training/checkpoints.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@
import concurrent.futures as futures
import dataclasses
import logging
from typing import Protocol
from typing import TYPE_CHECKING, Protocol

from etils import epath
import jax
Expand All @@ -13,7 +13,9 @@

from openpi.shared import array_typing as at
import openpi.shared.normalize as _normalize
import openpi.training.data_loader as _data_loader

if TYPE_CHECKING:
import openpi.training.data_loader as _data_loader
import openpi.training.utils as training_utils


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