opslevel_repositories documentation

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The documentation for opslevel_repositories describes how to query for repositories, but not what filters are available and how to use them. Can you please expand on this in the documentation, or link to a place where that documentation is available?

If it helps, the reason I was on that page is I was trying to see if it was possible to get a list of the repositories associated with a service. From the documentation alone I can tell I can get a list of repositories by tier. I tried peeking at the api using graphiql and couldn't figure it out.

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update: I see only tier is supported at the moment.