[AutoPR blueprint/resource-manager] Fix model type regression

[AutorestCI]

Created to sync Azure/azure-rest-api-specs#5535

[AutorestCI]

(message created by the CI based on PR content)

Installation instruction

Package azure-mgmt-blueprint

You can install the package azure-mgmt-blueprint of this PR using the following command:
pip install "git+https://github.com/Azure/azure-sdk-for-python@restapi_auto_5535#egg=azure-mgmt-blueprint&subdirectory=azure-mgmt-blueprint"

You can build a wheel to distribute for test using the following command:
pip wheel --no-deps "git+https://github.com/Azure/azure-sdk-for-python@restapi_auto_5535#egg=azure-mgmt-blueprint&subdirectory=azure-mgmt-blueprint"

If you have a local clone of this repository, you can also do:

• git checkout restapi_auto_5535
• pip install -e ./azure-mgmt-blueprint

Or build a wheel file to distribute for testing:

• git checkout restapi_auto_5535
• pip wheel --no-deps ./azure-mgmt-blueprint

Direct download

Your files can be directly downloaded here:

• azure-mgmt-blueprint-2018-11-01-preview.zip
• azure_mgmt_blueprint-2018_11_01_preview-py2.py3-none-any.whl

[AutorestCI]

This PR has been merged into #4158