digraph nestjs1 {
  rankdir=LR

  ChildService [color=dimgrey,fontcolor=dimgrey]
  ParentService -> ChildService [color=dimgrey]

  subgraph cluster_ParentModule {
    ChildService; ParentService
    label="ParentModule"
    style=dotted
  }

  MyService -> ParentService

  subgraph cluster_MyModule {
    MyService
    label="MyModule"
    style=dotted
  }
}