packet {
  trusted_packet_sequence_id: 999
  timestamp: 10
  heap_graph {
    pid: 2
    types {
      id: 54
      location_id: 5
      class_name: "java.lang.Object"
      object_size: 8
      kind: KIND_NOREFERENCES
      classloader_id: 0
    }
    types {
      id: 55
      location_id: 5
      class_name: "dev.perfetto.BigStuff"
      object_size: 1000000000 # Three of these overflow signed 32-bit
      superclass_id: 54
      kind: KIND_NORMAL
      classloader_id: 0
    }
    types {
      id: 56
      location_id: 5
      class_name: "dev.perfetto.Container"
      object_size: 36
      superclass_id: 54
      reference_field_id: 601 # obj1
      reference_field_id: 602 # obj2
      reference_field_id: 603 # obj3
      kind: KIND_NORMAL
      classloader_id: 0
    }
    objects {
      id: 0x1
      type_id: 55 # dev.perfetto.BigStuff
    }
    objects {
      id: 0x2
      type_id: 55 # dev.perfetto.BigStuff
    }
    objects {
      id: 0x3
      type_id: 55 # dev.perfetto.BigStuff
    }
    objects {
      id: 0x4
      type_id: 56 # dev.perfetto.Container
      reference_object_id: 0x1 # obj1
      reference_object_id: 0x2 # obj2
      reference_object_id: 0x3 # obj3
    }
    roots {
      object_ids: 0x4
      root_type: ROOT_JAVA_FRAME
    }
    field_names {
      iid: 601
      str: "dev.perfetto.BigStuff dev.perfetto.Container.obj1"
    }
    field_names {
      iid: 602
      str: "dev.perfetto.BigStuff dev.perfetto.Container.obj2"
    }
    field_names {
      iid: 603
      str: "dev.perfetto.BigStuff dev.perfetto.Container.obj3"
    }
    location_names {
      iid: 5
      str: "/apex/com.android.art/javalib/core-oj.jar"
    }
    index: 0
  }
}