type tok = Parse_info.infotype 'a wrap = 'a * toktype name = string wraptype dotted_name = name listtype expr = | Num of number| Str of string wrap list| Bool of bool wrap| ExprNone of tok| Name of name * expr_context * resolved_name ref| Tuple of expr list_or_comprehension * expr_context| List of expr list_or_comprehension * expr_context| DictOrSet of dictorset_elt list_or_comprehension| ExprStar of expr| TypedExpr of expr * type_| Ellipses of tok| BoolOp of boolop * expr list| BinOp of expr * operator * expr| UnaryOp of unaryop * expr| Compare of expr * cmpop list * expr list| Call of expr * argument list| Subscript of expr * slice list * expr_context| Lambda of parameters * expr| IfExp of expr * expr * expr| Yield of expr option| Await of expr| Repr of expr| Attribute of expr * name * expr_contextand 'a comprehension = 'a * for_if listand parameters = parameter listand type_ = exprand type_parent = argumenttype pattern = exprtype stmt = | ExprStmt of expr| Assign of expr list * expr| AugAssign of expr * operator * expr| For of pattern * expr * stmt list * stmt list| While of expr * stmt list * stmt list| If of expr * stmt list * stmt list| With of expr * expr option * stmt list| Return of expr option| Break| Continue| Pass| Raise of (expr * expr option) option| TryExcept of stmt list * excepthandler list * stmt list| TryFinally of stmt list * stmt list| Assert of expr * expr option| Global of name list| Delete of expr list| NonLocal of name list| Async of stmt| Import of alias_dotted list| ImportFrom of dotted_name * alias list * int option| FunctionDef of name * parameters * type_ option * stmt list * decorator list| ClassDef of name * type_parent list * stmt list * decorator listand decorator = exprand alias_dotted = dotted_name * name optiontype program = stmt listtype any = | Expr of expr| Stmt of stmt| Stmts of stmt list| Program of program| DictElem of dictorset_eltval context_of_expr : expr -> expr_context option