I found this on my HDD
def main():
xp = doc.SearchObject('xpresso')
tag = xp.GetTag(c4d.Texpresso)
master_node = tag.GetNodeMaster()
root = master_node.GetRoot()
my_nodes = root.GetChildren() # makes a list
print my_nodes
print len(my_nodes)
bit out of my depth here 😀