open XPlot.GoogleCharts
open System

let data =
    [
        "Washington", DateTime(1789, 4, 29), DateTime(1797, 3, 3)
        "Adams", DateTime(1797, 3, 3), DateTime(1801, 3, 3)
        "Jefferson", DateTime(1801, 3, 3), DateTime(1809, 3, 3)
    ]

let chart =
    data
    |> Chart.Timeline
    |> Chart.WithLabels ["Start"; "End"]

namespace XPlot

namespace XPlot.GoogleCharts

namespace System

val data : (string * DateTime * DateTime) list

Multiple items
[<Struct>]
type DateTime =
  new : year: int * month: int * day: int -> unit + 10 overloads
  member Add : value: TimeSpan -> DateTime
  member AddDays : value: float -> DateTime
  member AddHours : value: float -> DateTime
  member AddMilliseconds : value: float -> DateTime
  member AddMinutes : value: float -> DateTime
  member AddMonths : months: int -> DateTime
  member AddSeconds : value: float -> DateTime
  member AddTicks : value: int64 -> DateTime
  member AddYears : value: int -> DateTime
  ...

--------------------
DateTime ()
   (+0 other overloads)
DateTime(ticks: int64) : DateTime
   (+0 other overloads)
DateTime(ticks: int64, kind: DateTimeKind) : DateTime
   (+0 other overloads)
DateTime(year: int, month: int, day: int) : DateTime
   (+0 other overloads)
DateTime(year: int, month: int, day: int, calendar: Globalization.Calendar) : DateTime
   (+0 other overloads)
DateTime(year: int, month: int, day: int, hour: int, minute: int, second: int) : DateTime
   (+0 other overloads)
DateTime(year: int, month: int, day: int, hour: int, minute: int, second: int, kind: DateTimeKind) : DateTime
   (+0 other overloads)
DateTime(year: int, month: int, day: int, hour: int, minute: int, second: int, calendar: Globalization.Calendar) : DateTime
   (+0 other overloads)
DateTime(year: int, month: int, day: int, hour: int, minute: int, second: int, millisecond: int) : DateTime
   (+0 other overloads)
DateTime(year: int, month: int, day: int, hour: int, minute: int, second: int, millisecond: int, kind: DateTimeKind) : DateTime
   (+0 other overloads)

val chart : GoogleChart

type Chart =
  static member Annotation : data:seq<DateTime * #value * string * string> * ?Labels:seq<string> * ?Options:Options -> GoogleChart + 1 overload
  static member Area : data:seq<#value> * ?Labels:seq<string> * ?Options:Options -> GoogleChart + 2 overloads
  static member Bar : data:seq<#value> * ?Labels:seq<string> * ?Options:Options -> GoogleChart + 2 overloads
  static member Bubble : data:seq<string * #value * #value> * ?Labels:seq<string> * ?Options:Options -> GoogleChart + 2 overloads
  static member Calendar : data:seq<DateTime * #value> * ?Labels:seq<string> * ?Options:Options -> GoogleChart
  static member Candlestick : data:seq<#key * #value * #value * #value * #value> * ?Labels:seq<string> * ?Options:Options -> GoogleChart + 1 overload
  static member Column : data:seq<#value> * ?Labels:seq<string> * ?Options:Options -> GoogleChart + 2 overloads
  static member Combo : data:seq<#seq<'K * 'V>> * ?Labels:seq<string> * ?Options:Options -> GoogleChart (requires 'K :> key and 'V :> value)
  static member private Create : data:seq<#seq<'T>> -> labels:seq<string> option -> options:Options option -> chartType:ChartGallery -> datumNew:('T -> Datum) -> GoogleChart
  static member private Create' : data:seq<#value> -> labels:seq<string> option -> options:Options option -> chartType:ChartGallery -> GoogleChart
  ...

static member Chart.Timeline : data:seq<string * string * #value * #value> * ?Labels:seq<string> * ?Options:Options -> GoogleChart
static member Chart.Timeline : data:seq<string * #value * #value> * ?Labels:seq<string> * ?Options:Options -> GoogleChart

static member Chart.WithLabels : labels:seq<string> -> chart:GoogleChart -> GoogleChart

member GoogleChart.GetHtml : unit -> string