anchor.diff:  open Fable.Core.JsInterop
   
   module Props =
  -    [<StringEnum>]
  -    type Layout =
  +
  +    type [<StringEnum>] Layout =
           | Horizontal
           | Vertical
   
  -    [<StringEnum>]
  -    type StackOffset =
  +    type [<StringEnum>] StackOffset =
           | Expand
           | Wiggle
           | Silhouette
           | Sign
           | [<CompiledName("none")>] NoStackOffset
   
  -    [<StringEnum>]
  -    type Interpolation =
  +    type [<StringEnum>] BaseValue =
  +        | DataMin
  +        | DataMax
  +        | Auto
  +
  +    type [<StringEnum>] Interpolation =
           | Basis
           | BasisClosed
           | BasisOpen
  
positive.code:         | OnMouseMove of (React.MouseEvent -> unit)
          | OnMouseLeave of (React.MouseEvent -> unit)
          interface Fable.Helpers.React.Props.IProp
          static member Custom(key: string, value: obj): ChartProp = !!(key, value)
  
  type RechartComponent =
      interface end
  
negative.code:         | StepAfter
          //| Function
  
      type [<StringEnum>] Legend =
          | Line
          | Square
          | Rect
  