# Module Std

    module Std: sig .. end

    include Core_kernel.Std_kernel

    val sec : float -> Time.Span.t

    val (^/) : string -> string -> string

    module Bigbuffer: Bigbuffer

    module Bigstring: Bigstring

    module Bigstring_marshal: Bigstring_marshal

    module Caml: Caml

    module Command: Command

    module Condition: Core_condition

    module Crc: Crc

    module Daemon: Daemon

    module Date: Date

    module Debug: Debug

    module Filename: Core_filename

    module Interval: Interval

    module Iobuf: Iobuf

    module Limiter: Limiter

    module Linux_ext: Linux_ext

    module Lock_file: Lock_file

    module Mutex: Core_mutex

    module Nano_mutex: Nano_mutex

    module Piecewise_linear: Piecewise_linear

    module Process_env: Process_env

    module Signal: Signal

    module Squeue: Squeue

    module Sys: Core_sys

    module Thread: Core_thread

    module Time: Time

    module Time_ns: Time_ns

    module Time_stamp_counter: Time_stamp_counter

    module Timing_wheel: Timing_wheel_float

    module Unix: Core_unix

    module User_and_group: User_and_group

    module Uuid: Uuid

    module Weak_hashtbl: Weak_hashtbl

    val _squelch_unused_module_warning_ : unit