Support POST by ref and POST by object for api enpoints that allow both

An issue was recently raised for the current Java sdk in which a user wanted to create a group while simultaneously posting to the '/directory/administrativeUnit/members' enpoint. The documentation states that this is possible: https://learn.microsoft.com/en-us/graph/api/administrativeunit-post-members?view=graph-rest-1.0&tabs=http
However, our current java SDK only creates a referenceRequestBuilder for this scenario due to a limitation in the current generation. We acknowledge that this is due to a 'Contains-Target' annotation being absent in the metadata file, this however is not incorrect since the service allows for both posting by reference and object so we cannot simply add 'Contains-Target' as this would remove the other functionality. In short, we need to support both.
This relates to Kiota because while investigating the issue Mustafa and I discovered that the code snippet generated for C# in the documentation provided above does not compile in Raptor, specifically because the method 'postAsync' does not exist for the following case:

graphClient.Directory.AdministrativeUnits["{administrativeUnit-id}"].Members.PostAsync(requestBody);

but the following is available:

graphClient.Directory.AdministrativeUnits["{administrativeUnit-id}"].Members.Ref.PostAsync(requestBody);

While it seems that our intention is to support both scenarios given the snippets generated, the reality is that the Kiota generation is not actually generating the code to provide functionality for both scenarios. Is the expectation that Kiota should cover scenarios in which we can post by reference or object to a single endpoint? Or are we overlooking this scenario?