Automatically generation of host key in function and named value pair in API management using ARM template

#### Question


If u add function from azure portal it will automatically add host key to the function and named value pair to the API management. How to accomplish that with ARM template? Is there a way to automate this process, or do I have to:
1. Create a random host key in function (if yes, are there any rules on how to generate such key?)
2. Get proper host key in API Management template and save it as name-value

Start by reviewing the Azure Functions and API Management ARM template resources involved in the portal flow, focusing on host keys and named-value pairs. Determine whether ARM templates expose the required relationship and identify the supported automation path. Done means the host key and corresponding API Management named value can be created and linked through the template, with the required rules documented.

Written by the indexing model from the issue text.