fix: use __import__ to avoid flake8 E402 in test

Author: 0xyangl

tests/test_tools/test_get_flops_grounding.py

@@ -8,17 +8,17 @@
 from mmengine.config import Config
 
 # Add tools path so we can import the module directly
-sys.path.insert(0, 'tools/analysis_tools')  # pragma: no cover
-from get_flops_grounding import (
-    _get_backbone_out_channels,  # noqa: E402
-    _get_feature_strides,
-    _get_neck_out_channels,
-    _get_transformer_config,
-    count_neck_flops,
-    count_text_encoder_flops,
-    count_transformer_flops,
-    format_flops,
-    format_params)
+sys.path.insert(0, 'tools/analysis_tools')
+_mod = __import__('get_flops_grounding')
+_get_backbone_out_channels = _mod._get_backbone_out_channels
+_get_feature_strides = _mod._get_feature_strides
+_get_neck_out_channels = _mod._get_neck_out_channels
+_get_transformer_config = _mod._get_transformer_config
+count_neck_flops = _mod.count_neck_flops
+count_text_encoder_flops = _mod.count_text_encoder_flops
+count_transformer_flops = _mod.count_transformer_flops
+format_flops = _mod.format_flops
+format_params = _mod.format_params
 
 
 class TestFormatFlops(unittest.TestCase):