[Feature request] Omit a mandatory parameter if resource can be queried by List

[BethanyZhou]

For example:
There is a generated cmdlet, which matches API design, where HsmName and ResourceGroupName are mandatory.

Get-AzKeyVaultManagedHsmRegion -HsmName <String> -ResourceGroupName <String> [-SubscriptionId <String[]>]
 [-DefaultProfile <PSObject>] [<CommonParameters>]

But we can list all HSMs by HsmName and then get its ResourceGroupName so that ResourceGroupName can be omitted in this case. That's one of CLI common design.
See

az keyvault region list --hsm-name
                        [--resource-group]

Proposal:
Autorest.PowerShell supports this as its built-in function.

[dolauli]

1. how to handle conflict
   1. two resources group names contain resource with the same names
   2. resource graph may be a better choice