def Lean.removeLeadingSpaces (s : String) : String

def Lean.addBuiltinDocString (declName : Lake.Name) (docString : String) : IO Unit

def Lean.addDocString {m : Type → Type} [Lean.MonadEnv m] (declName : Lake.Name) (docString : String) : m Unit

def Lean.addDocString' {m : Type → Type} [Monad m] [Lean.MonadEnv m] (declName : Lake.Name) (docString? : Option String) : m Unit

def Lean.findDocString? (env : Lean.Environment) (declName : Lake.Name) (includeBuiltin : optParam Bool true) : IO (Option String)

structure Lean.ModuleDoc : Type

• doc : String
• declarationRange : Lean.DeclarationRange

def Lean.addMainModuleDoc (env : Lean.Environment) (doc : Lean.ModuleDoc) : Lean.Environment

def Lean.getMainModuleDoc (env : Lean.Environment) : Lean.PersistentArray Lean.ModuleDoc

def Lean.getModuleDoc? (env : Lean.Environment) (moduleName : Lake.Name) : Option (Array Lean.ModuleDoc)

def Lean.getDocStringText {m : Type → Type} [Monad m] [Lean.MonadError m] [Lean.MonadRef m] (stx : Lean.TSyntax `Lean.Parser.Command.docComment) : m String

def Lean.TSyntax.getDocString (stx : Lean.TSyntax `Lean.Parser.Command.docComment) : String