def postprocess(self):
'''
Handle all deferred operations such as binding together and expanding
repeating units. Removes any distinguishing markers on node ids, and
constructs a new instance of :attr:`structure_class` from the accumulated
graph
Returns
-------
Glycan
'''
for repeat_index, repeater in self.repeats.items():
repeater.expand_inner()
for postop in self.postponed:
logger.debug("Postprocessing %s", postop)
postop[0](*postop[1:])
return undecorate_tree(self.structure_class(rootp(self.root)))
def __root__(self):
root_node = rootp(self.graph[1])
if root_node.node_type is Substituent.node_type:
root_node = root_node.links[1][0].parent if root_node.links[1][0].parent.node_type is Monosaccharide.node_type\
else root_node.links[1][0].child
return root_node