[ASK] How to "pass" an MQTT RPC call

### Product

.NET SDK

### Azure Iot Operations version

_No response_

### What happened?

Using the AIO SDK, to write a handler that handles multiple MQTT paths
`[CommandTopic("foo/bar/{method}")]`

and not passing in `method` into the TopicTokenMap, so that the AIO SDK use the MQTT wildcard `+`. Will allow the user to read the actual used method used out of the `extendedRequest.RequestMetadata.TopicTokens` dictionary.

But how to avoid answering that call, if the `method` isn't something the current service is responsible for? How to tell the AIO SDK, that it should not respond to that call?

### List the steps to reproduce

_No response_

### Code of Conduct

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