Beta SDK Generation Issues

[Ndiritu]

1. Missing Microsoft\Graph\Beta\Generated\Models\Admin model:

 ------ ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 
  109    Parameter $body of method Microsoft\Graph\Beta\Generated\Admin\AdminRequestBuilder::createPatchRequestInformation() has invalid type Microsoft\Graph\Beta\Generated\Models\Admin.  
  139    Class Microsoft\Graph\Beta\Generated\Models\Admin not found.                                                                                                                       
         💡 Learn more at https://phpstan.org/user-guide/discovering-symbols                                                                                                                 
  152    Parameter $body of method Microsoft\Graph\Beta\Generated\Admin\AdminRequestBuilder::patch() has invalid type Microsoft\Graph\Beta\Generated\Models\Admin. 

2. Wrong request builder namespaces: Attempting to instantiate MicrosoftGraphBetaGeneratedGroupsItemCalendarCalendarViewItemExceptionOccurrencesItemEventItemRequestBuilder

  266    Method Microsoft\Graph\Beta\Generated\Groups\Item\Calendar\CalendarView\Item\EventItemRequestBuilder::exceptionOccurrencesById() has invalid return type                                    
         Microsoft\Graph\Beta\Generated\Groups\Item\Calendar\CalendarView\Item\MicrosoftGraphBetaGeneratedGroupsItemCalendarCalendarViewItemExceptionOccurrencesItemEventItemRequestBuilder.         
  269    Instantiated class                                                                                                                                                                          
         Microsoft\Graph\Beta\Generated\Groups\Item\Calendar\CalendarView\Item\MicrosoftGraphBetaGeneratedGroupsItemCalendarCalendarViewItemExceptionOccurrencesItemEventItemRequestBuilder not      
         found.  

Occurs in a few other request builders...

3. Wrong model names in createDiscriminatorValue() when models are not in microsoft.graph.models namespace e.g. CallRecord

143    Instantiated class Microsoft\Graph\Beta\Generated\Models\CallRecord not found.                              
         💡 Learn more at https://phpstan.org/user-guide/discovering-symbols                                          
  144    Instantiated class Microsoft\Graph\Beta\Generated\Models\Segment not found.                                 
         💡 Learn more at https://phpstan.org/user-guide/discovering-symbols                                          
  145    Instantiated class Microsoft\Graph\Beta\Generated\Models\Session not found.                                 
         💡 Learn more at https://phpstan.org/user-guide/discovering-symbols                                          
  322    Instantiated class Microsoft\Graph\Beta\Generated\Models\EscapedCase not found.                             
         💡 Learn more at https://phpstan.org/user-guide/discovering-symbols                                          
  323    Instantiated class Microsoft\Graph\Beta\Generated\Models\CaseOperation not found.                           
         💡 Learn more at https://phpstan.org/user-guide/discovering-symbols                                          
...       

[baywet]

For the third one, these models live under a sub-namespace under the models namespace (so models/callrecords) and I can see that the subnamespace is missing from the import. Maybe worth investigating to understand whether the writer is pulling the information from the right place.

[baywet]

For the second one it seems that the writer is somehow appending the namespace/folder name to the request builder name, I'm not sure why it's doing that, but worth investigating to understand why we have the MicrosoftGraphBetaGenerated prefix.