Consumption plan guidance needed

**Bicep version**
Bicep CLI version 0.4.613 (d826ce8411)

**Describe the bug**

Couldn't find guidance for creating a app service plan with consumption setting.

**To Reproduce**
Found this for ARM:
https://raw.githubusercontent.com/Azure/azure-quickstart-templates/master/quickstarts/microsoft.web/function-app-create-dynamic/azuredeploy.json

But when I convert to bicep I get this:

**Additional context**

It's not clear if those properties are required or not.

azsdke2e
azsdke2e2

Start with the referenced ARM template, azuredeploy.json, and compare its consumption app service plan properties with the reported Bicep conversion. Clarify which properties are required and provide guidance for expressing this configuration in Bicep; done means a newcomer can follow the guidance without ambiguity.

Written by the indexing model from the issue text.