anchor.diff:          | [<CompiledName("unmounted")>] Unmounted
   
       [<RequireQualifiedAccess>]
  -    type TransitionProps =
  +    type TransitionProp =
           | In of bool
           | Appear of bool
           | Enter of bool
  
positive.code:         | Class of string
          | Ref of (obj -> obj)
          | Key of string
          static member Custom(key: string, value: obj): CSSTransitionProps =
              unbox(key, value)
  
      [<RequireQualifiedAccess>]
      type TransitionGroupProps =
          | Component of React.ReactType
          | ChildFactory of (React.ReactElement -> React.ReactElement)
          | Class of string
          | Ref of (obj -> obj)
          | Key of string
          static member Custom(key: string, value: obj): TransitionGroupProps =
              unbox(key, value)
  
      let private asNode (el: React.ReactElement): React.ReactNode =
          !^(!^el: React.ReactChild)
  
      let transition (props: TransitionProps list) (child: React.ReactElement): React.ReactElement =
          let props = (TransitionProps.Children !^(asNode child))::props
          ofImport "Transition" "react-transition-group" (keyValueList CaseRules.LowerFirst props) []
  
      let transitionWithRender (props: TransitionProps list) (render: TransitionStatus -> React.ReactNode): React.ReactElement =
          let props = (TransitionProps.Children !^render)::props
          ofImport "Transition" "react-transition-group" (keyValueList CaseRules.LowerFirst props) []
  
      let cssTransition (props: CSSTransitionProps list) (child: React.ReactElement): React.ReactElement =
          let props = (CSSTransitionProps.Children !^(asNode child))::props
          ofImport "CSSTransition" "react-transition-group" (keyValueList CaseRules.LowerFirst props) []
  
      let cssTransitionWithRender (props: CSSTransitionProps list) (render: TransitionStatus -> React.ReactNode): React.ReactElement =
          let props = (CSSTransitionProps.Children !^render)::props
          ofImport "CSSTransition" "react-transition-group" (keyValueList CaseRules.LowerFirst props) []
  
      let transitionGroup (props: TransitionGroupProps list) (children: React.ReactElement list): React.ReactElement =
          ofImport "TransitionGroup" "react-transition-group" (keyValueList CaseRules.LowerFirst props) children
  
negative.code:         | Class of string
          | Ref of (obj -> obj)
          | Key of string
          static member Custom(key: string, value: obj): TransitionProp =
              unbox(key, value)
  
      type CSSTransitionClassNames = {
  