Question: OpenApiOAuthFlows configuration options

I am in the process of trying to configure an `OpenApiOAuthFlows` (for oauth clientcredentials) and was hoping to be able to access configuration (or maybe even other services), but it does not seem to be supported through constructor injection or in any alternative approaches. The error from attempting constructor injection is simply `No parameterless constructor defined for type`.

Is there an approach I am missing, is dependency injection planned, or is there a recommended workaround? (I am guessing reading environment variables directly is a somewhat reasonably approach, if not as nice or flexible as IConfiguration)

Start by reviewing how OpenApiOAuthFlows is constructed and how dependency injection or IConfiguration is exposed in the extension. Determine whether constructor injection is supported, planned, or replaceable by a documented workaround. Done means the supported approach or implementation scope is clearly established.

Written by the indexing model from the issue text.