Typing fixes for test_resolvers.py.

setup.cfg

@@ -807,8 +807,6 @@ check_untyped_defs = False
 check_untyped_defs = False
 [mypy-integration.test_scripts]
 check_untyped_defs = False
-[mypy-integration.test_resolvers]
-check_untyped_defs = False
 [mypy-integration.test_pulsar_embedded_mq]
 check_untyped_defs = False
 [mypy-integration.test_local_job_cancellation]

test/integration/test_resolvers.py

@@ -1,6 +1,7 @@
 """Integration tests for dependency resolution."""
 import os
 from tempfile import mkdtemp
+from typing import ClassVar
 
 from galaxy_test.base.populators import (
     DatasetPopulator,
@@ -15,6 +16,7 @@ class CondaResolutionIntegrationTestCase(integration_util.IntegrationTestCase):
     """Test conda dependency resolution through API."""
 
     framework_tool_and_types = True
+    conda_tmp_prefix: ClassVar[str]
 
     @classmethod
     def handle_galaxy_config_kwds(cls, config):