digraph {
  {
    edge [arrowhead=dot]
    { getCategory categories } -> useEffect
    cache -> getCategory
  }

  {
    getCategory -> useEffect [dir=back]
    cache -> getCategory [dir=back,style=dashed]
    fetchCategory -> getCategory [dir=back,len=3]
  }

  useEffect [style=filled,fillcolor="#DAE8FC"]
  getCategory [style=filled,fillcolor="#E1D5E7"]
  cache [style=filled,fillcolor="#F8CECC"]
  fetchCategory [style=filled,fillcolor="#FFF2CC"]
}