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The qualified import of ‘GHC.Utils.Exception’ is redundant

Noncanonical ‘pure = return’ definition detected

The import of ‘GHC.Driver.CmdLine’ is redundant

• Deriving ‘Typeable’ has no effect: all types now auto-derive Typeable

The import of ‘Data.Maybe’ is redundant

The import of ‘Control.Concurrent.MVar’ is redundant

The import of ‘System.IO.Unsafe’ is redundant

• Deriving ‘Typeable’ has no effect: all types now auto-derive Typeable