chore(bigframes): fix lints (#17098)

Some lint errors sneaked in to the main branch of BigFrames.

Author: sycai

packages/bigframes/bigframes/operations/__init__.py

@@ -126,6 +126,7 @@
     geo_x_op,
     geo_y_op,
 )
+from bigframes.operations.googlesql import GoogleSqlScalarOp
 from bigframes.operations.json_ops import (
     JSONExtract,
     JSONExtractArray,
@@ -229,7 +230,6 @@
     timestamp_add_op,
     timestamp_sub_op,
 )
-from bigframes.operations.googlesql import GoogleSqlScalarOp
 
 __all__ = [
     # Base ops

packages/bigframes/bigframes/operations/geo_ops.py

@@ -19,7 +19,6 @@
 from bigframes import dtypes
 from bigframes.operations import base_ops
 
-
 GeoStAstextOp = base_ops.create_unary_op(
     name="geo_st_astext",
     type_signature=op_typing.FixedOutputType(

packages/bigframes/bigframes/testing/engine_utils.py

@@ -15,8 +15,7 @@
 import pandas.testing
 
 from bigframes.core import nodes
-from bigframes.session import semi_executor, execution_spec
-
+from bigframes.session import execution_spec, semi_executor
 
 SPEC = execution_spec.ExecutionSpec(
     ordered=True,

packages/bigframes/tests/system/conftest.py

@@ -27,9 +27,9 @@
 import google.api_core.exceptions
 import google.cloud.bigquery as bigquery
 import google.cloud.bigquery_connection_v1 as bigquery_connection_v1
+import google.cloud.bigquery_storage_v1
 import google.cloud.exceptions
 import google.cloud.functions_v2 as functions_v2
-import google.cloud.bigquery_storage_v1
 import google.cloud.resourcemanager_v3 as resourcemanager_v3
 import google.cloud.storage as storage  # type: ignore
 import numpy as np

packages/bigframes/tests/system/small/engines/test_sorting.py

@@ -16,7 +16,7 @@
 
 import bigframes.operations as bf_ops
 from bigframes.core import array_value, nodes, ordering
-from bigframes.session import polars_executor, execution_spec
+from bigframes.session import execution_spec, polars_executor
 from bigframes.testing.engine_utils import assert_equivalence_execution
 
 pytest.importorskip("polars")