Is it possible to fetch synchronizationSchema?

[ken5scal]

msgraph.SynchronizationJobProvisionOnDemand requires RuleId of synchronization schema as its parameter for on-demand provisioning; but, so far I could not find implementations fetching the schema. The document can be found in below:

https://learn.microsoft.com/ja-jp/graph/api/resources/synchronization-synchronizationschema?view=graph-rest-beta

I have read several classes including SynchronizationJobClient, but if there is one, please let me know

Thanks in advance.