Here is a list of all documented enums with links to the class documentation for each member:

abi_token : caf::version
network : caf::io::network::protocol
position : caf::json_reader
resume_result : caf::resumable
stall_policy : caf::actor_clock
state : caf::action
subtype_t : caf::resumable
transport : caf::io::network::protocol
type : caf::json_writer
variant_field : caf::uuid
version_field : caf::uuid