:: String -> Int -package:hledger-lib -package:speculate -package:ViennaRNAParser is:exact -package:string-conversions -package:Cabal -package:gpolyline -package:base -package:bytestring -package:safe package:language-c

internalErr :: String -> a
language-c Language.C.Data.Error
raise a fatal internal error; message may have multiple lines