hunk.code_window:     changes.set(t, { phase, springs, payload })
     })
     // The prop overrides from an ancestor.
     const context = useSpringContext()
     // Merge the context into each transition.
     useLayoutEffect(() => {
  
hunk.labels: keep keep keep keep add keep keep keep
hunk.after_edit:   const hasContext = hasProps(context)
  
hunk.file_path: packages/core/src/hooks/useTransition.tsx
hunk.type: add
file: export * from './Spring'
  export * from './Trail'
  export * from './Transition'
  