include ([%js] : sig

           module Date : sig
             type t
             val t_of_js: Ojs.t -> t
             val t_to_js: t -> Ojs.t
             val now: unit -> t [@@js.new "Date"]
             val get_day: t -> int [@@js.call]
             val get_full_year: t -> int [@@js.call]
             val get_month: t -> int [@@js.call]
             val get_date: t -> int [@@js.call]
             val get_hours: t -> int [@@js.call]
             val get_minutes: t -> int [@@js.call]
             val get_seconds: t -> int [@@js.call]
             val to_date_string: t -> string [@@js.call]
             val to_ISO_string: t -> string [@@js.call]
             val to_locale_date_string: t -> string [@@js.call]
             val to_string: t -> string [@@js.call]
           end

           module File : sig
             type t
             val t_of_js: Ojs.t -> t
             val get_id: t -> string [@@js.call]
             val get_name: t -> string [@@js.call]
             val get_size: t -> int [@@js.call]
           end

           module FileIterator : sig
             type t
             val get_files: unit -> t [@@js.global "DriveApp.getFiles"]
             val t_of_js: Ojs.t -> t
             val has_next: t -> bool [@@js.call]
             val next: t -> File.t [@@js.call]
           end


           val log: string -> unit [@@js.global "Logger.log"]

           module Range : sig
             type t
             val get_a1_notation: t -> string [@@js.call]
             val get_background: t -> string [@@js.call]
             val get_row: t -> int [@@js.call]
             val get_last_row: t -> int [@@js.call]
             val get_column: t -> int [@@js.call]
             val get_last_column: t -> int [@@js.call]
             val get_num_columns: t -> int [@@js.call]
             val get_num_rows: t -> int [@@js.call]
             val get_values: t -> Ojs.t array array [@@js.call]
             val get_formulas: t -> string array array [@@js.call]
             val get_display_values: t -> string array array [@@js.call]
             val set_value: t -> Ojs.t -> t [@@js.call]
           end

           module NamedRange: sig
             type t
             val get_name: t -> string [@@js.call]
             val get_range: t -> Range.t [@@js.call]
           end

           module SandboxMode : sig
             type t
             val iframe : t [@@js.global "HtmlService.SandboxMode.IFRAME"]
           end

           module HtmlOutput : sig
             type t
             val create_html_output_from_file: string -> t [@@js.global "HtmlService.createHtmlOutputFromFile"]
             val set_sandbox_mode : t -> SandboxMode.t -> t [@@js.call]
             val set_title : t -> string -> t [@@js.call]
           end

           module Menu : sig
             type t
             val add_item : t -> caption:string -> functionName:string -> t [@@js.call]
             val add_separator : t -> t [@@js.call]
             val add_sub_menu : t -> t -> t [@@js.call]
             val add_to_ui : t -> unit [@@js.call]
           end

           module Ui : sig
             type t
             type menu
             val show_sidebar : t -> HtmlOutput.t -> unit [@@js.call]
             val create_menu : t -> caption:string -> Menu.t [@@js.call]

           end

           module Sheet : sig
             type t
             val get_active_sheet: unit -> t [@@js.global "SpreadsheetApp.getActiveSheet"]
             val get_ui: unit -> Ui.t [@@js.global "SpreadsheetApp.getUi"]
             val get_last_row: t -> int [@@js.call]
             val get_last_column: t -> int [@@js.call]
             val get_sheet_values: t -> start_row:int -> start_column:int -> num_rows:int -> num_columns:int -> Ojs.t array array [@@js.call]
             val get_range: t -> start_row:int -> start_column:int -> num_rows:int -> num_columns:int -> Range.t [@@js.call]
             val get_data_range: t -> Range.t [@@js.call]
             val get_name: t -> string [@@js.call]
             val get_named_ranges: t -> NamedRange.t list [@@js.call]
             val add_menu: string -> Ojs.t list -> unit [@@js.global "Spreadsheet.addMenu"]
           end

           module EmailField : sig
             type t
             val get_address: t -> string [@@js.call]
           end

           module PhoneField : sig
             type t
             module Field : sig
               type t
               val work : t [@@js.global "ContactsApp.Field.WORK_PHONE"]
               val mobile : t [@@js.global "ContactsApp.Field.MOBILE_PHONE"]
               val home : t [@@js.global  "ContactsApp.Field.HOME_PHONE"]
             end
             val get_phone_number: t -> string [@@js.call]
           end

           module Contacts : sig
             type t
             val get_contacts: unit -> t list [@@js.global "ContactsApp.getContacts"]

             val get_family_name: t -> string [@@js.call]
             val get_given_name: t -> string [@@js.call]
             val get_full_name: t -> string [@@js.call]

             val get_emails: t -> EmailField.t list [@@js.call]
             val get_phones: t -> PhoneField.t list [@@js.call]
             val add_phone: t -> PhoneField.Field.t -> string -> PhoneField.t [@@js.call]

               val create: given_name:string -> family_name:string -> email:string -> t
                      [@@js.global "ContactsApp.createContact"]

             module Group : sig
               type g
               val get_contact_group: string -> g [@@js.global "ContactsApp.getContactGroup"]
               val get_contacts: g -> t list [@@js.call]
             end
             val add_to_group: t -> Group.g -> t [@@js.call]
             val get_contact_groups: t -> Group.g list
           end

           module GmailMessage : sig
             type t
             val get_body : t -> string [@@js.call]
             val get_subject : t -> string [@@js.call]
             val get_from : t -> string [@@js.call]
           end

           module GmailThread : sig
             type t
             val get_messages: t -> GmailMessage.t list [@@js.call]
           end

           module GmailApp : sig
             val send_email: recipient:string -> subject:string -> body:string -> unit
                 [@@js.global "GmailApp.sendEmail"]
             val search: string -> GmailThread.t list [@@js.global "GmailApp.search"]
           end

         end)