`type t``= Core_kernel.Time_ns.t```
`include sig ... end`
`val compare : t ‑> t ‑> Core_kernel__.Import.int`
`val sexp_of_t : t ‑> Base.Sexp.t`
`module Span : sig ... end with type t = Core_kernel.Time_ns.Span.t`
`include Core_kernel.Comparable.Infix with type t := t`
`type t`````
`val (>=) : t ‑> t ‑> bool`
`val (<=) : t ‑> t ‑> bool`
`val (=) : t ‑> t ‑> bool`
`val (>) : t ‑> t ‑> bool`
`val (<) : t ‑> t ‑> bool`
`val (<>) : t ‑> t ‑> bool`
`include Core_kernel__.Import.Equal.S with type t := t`
`type t`````
`val equal : t Core_kernel__.Import.Equal.equal`
`val epoch : t`
`val add : t ‑> Span.t ‑> t`
`val sub : t ‑> Span.t ‑> t`
`val diff : t ‑> t ‑> Span.t`