code: def parse(self, tree):
      self.next_id = 0
      self.path = []
      self.code = []
      self.paths = {}
      self.codes = {}
      self._parse(tree)
  
      assert len(self.path) == 0
      assert len(self.code) == 0
      assert len(self.paths) == len(self.codes)
  
imports: import copy
  import numpy
  import six
  import chainer
  from chainer.backends import cuda
  from chainer import device_resident
  from chainer import function
  from chainer.initializers import uniform
  from chainer import link
  from chainer import utils
  from chainer.utils import type_check
  from chainer import variable
label_desc: Use image node_id 5 for calling the TreeParser obj's underlying member method code with example usage: obj.parse(tree) without return types