AzureADPreview - 'All' parameter of Get-AzureADUser behaves like a "boolean parameter" rather than a "switch parameter"

[heidarj]

Using the AzureADPreview module, version 2.0.2.136 I notice that the 'All' parameter of Get-AzureADUser behaves like a "boolean parameter" rather than a "switch parameter".

That is to say this:

Get-AzureADUser -All

throws this error:

Get-AzureADUser : Missing an argument for parameter 'All'. Specify a parameter of type 'System.Nullable`1[System.Boolean]' and try again.

---

The only way to use the 'All' parameter is by providing a boolean value:

Get-AzureADUser -All:$true

[heidarj]

Microsoft documentation about "Advanced Function Parameters" states:

Switch parameters are easy to use and are preferred over Boolean parameters, which have a more difficult syntax.