val sexp_of_t : t -> Ppx_sexp_conv_lib.Sexp.tval create : (unit -> unit) -> tcreate f arranges for f to be called after the end of each major GC cycle, starting with the current cycle or the next one. f will be run in the monitor that create was called in.
val delete : t -> unitdelete t will stop the calls to the function associated with t. Calling delete
t again has no effect.