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from websockets.datastructures import Headers
from .utils import DeprecationTestCase
class BackwardsCompatibilityTests(DeprecationTestCase):
def test_headers_class(self):
with self.assertDeprecationWarning(
"Headers and MultipleValuesError were moved "
"from websockets.http to websockets.datastructures"
"and read_request and read_response were moved "
"from websockets.http to websockets.legacy.http",
):
from websockets.http import Headers as OldHeaders
self.assertIs(OldHeaders, Headers)
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