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from sqlalchemy.sql import util as sql_util
from sqlalchemy.sql.elements import ColumnElement
from sqlalchemy.testing import eq_
from sqlalchemy.testing import fixtures
class MiscTest(fixtures.TestBase):
def test_column_element_no_visit(self):
class MyElement(ColumnElement):
_traverse_internals = []
eq_(sql_util.find_tables(MyElement(), check_columns=True), [])
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