def Lean.Elab.headerToImports (header : Lean.Syntax) : List Lean.Import

def Lean.Elab.processHeader (header : Lean.Syntax) (opts : Lean.Options) (messages : Lean.MessageLog) (inputCtx : Lean.Parser.InputContext) (trustLevel : optParam UInt32 0) : IO (Lean.Environment × Lean.MessageLog)

def Lean.Elab.parseImports (input : String) (fileName : optParam (Option String) none) : IO (List Lean.Import × Lean.Position × Lean.MessageLog)

@[export lean_print_imports]

def Lean.Elab.printImports (input : String) (fileName : Option String) : IO Unit