azure-cli: az apim list fails with ModuleNotFoundError

Describe the bug

az apim list fails with ModuleNotFoundError using version 2.0.72 of the CLI, which I installed yesterday.

Command Name az apim list

Errors:

No module named 'azure.mgmt.apimanagement.models.api_management_client_enums'
Traceback (most recent call last):
pip-install-qxmmnr17\knack\knack\cli.py, ln 206, in invoke
cli\core\commands\__init__.py, ln 523, in execute
azure\cli\core\__init__.py, ln 291, in load_arguments
cli\core\commands\__init__.py, ln 290, in load_arguments
pip-install-qxmmnr17\knack\knack\commands.py, ln 97, in load_arguments
azure\cli\core\__init__.py, ln 488, in default_arguments_loader
azure\cli\core\__init__.py, ln 528, in get_op_handler
...
<frozen importlib._bootstrap>, ln 955, in _find_and_load_unlocked
<frozen importlib._bootstrap>, ln 665, in _load_unlocked
<frozen importlib._bootstrap_external>, ln 678, in exec_module
<frozen importlib._bootstrap>, ln 219, in _call_with_frames_removed
cli\command_modules\apim\custom.py, ln 9, in <module>
ModuleNotFoundError: No module named 'azure.mgmt.apimanagement.models.api_management_client_enums'

To Reproduce:

Steps to reproduce the behavior. Note that argument values have been redacted, as they may contain sensitive information.

-No prerequisites_

• az apim list

Expected Behavior

The CLI would list the API Mangement resources in my subscription.

Environment Summary

Windows-10-10.0.17134-SP0
Python 3.6.6
Shell: cmd.exe

azure-cli 2.0.72

Additional Context