Meta_conv.OpenYou should open this module
Special types
This module defines types specially handled by meta_conv. To be handled correctly, these type names must be used WITHOUT module names.
For example, Meta_conv.Types.mc_option or Types.mc_option are just treated as normal types and no special meta_conv decoding/encoding are not generated for them.
type ('a, 'b) hashtbl = ('a, 'b) Hashtbl.t