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    Answers and rating deltas for
    Could someone explain the diagram about the `lens` library?
| Author | Votes | Δ | 
|---|---|---|
| kqr | 31 | 0.00 | 
Last visited: Jan 2, 2016, 4:16:54 PM
 
            | Author | Votes | Δ | 
|---|---|---|
| kqr | 31 | 0.00 |