Summary: Ref T7803. Ref T5873. I want to drive Conduit through more shared infrastructure, but can't currently add parameters automatically. Put a `getX()` around the `defineX()` methods so the parent can provide default behaviors. Also like 60% of methods don't define any special error types; don't require them to implement this method. I want to move away from this in general. Test Plan: - Ran `arc unit --everything`. - Called `conduit.query`. - Browsed Conduit UI. Reviewers: btrahan Reviewed By: btrahan Subscribers: hach-que, epriestley Maniphest Tasks: T5873, T7803 Differential Revision: https://secure.phabricator.com/D12380