Extension.V3
type nonrec t = t
val declare : string -> 'context Context.t -> (Migrate_parsetree.Ast_412.Parsetree.payload, 'a, 'context) Ast_pattern.t -> (ctxt:Expansion_context.Extension.t -> 'a) -> t
val declare_inline : string -> 'context Context.t -> (Migrate_parsetree.Ast_412.Parsetree.payload, 'a, 'context list) Ast_pattern.t -> (ctxt:Expansion_context.Extension.t ->
'a) -> t