digraph ideal {

rankdir = "LR"

object [

shape = none

label = <<table border="0" cellspacing="0">

<tr><td><b>object</b></td></tr>

<tr><td port="w" border="1">weakrefs</td></tr>

<tr><td port="dv" border="1">dict or values</td></tr>

<tr><td border="1" >GC info 0</td></tr>

<tr><td border="1" >GC info 1</td></tr>

<tr><td port="r" border="1" >refcount</td></tr>

<tr><td port="h" border="1" >__class__</td></tr>

<tr><td border="1">opaque (extension) data </td></tr>

<tr><td border="1">...</td></tr>

<tr><td border="1">__slot__ 0</td></tr>

<tr><td border="1">...</td></tr>

</table>>

]

oop [ label = "pointer"; shape="plain"]

oop -> object:r

}