code: def ndim(self):
      return len(self.shape)
  
imports: import numpy
  import six
  from chainer import backend
  from chainer.backends import cuda
  from chainer import function_node
  from chainer.utils import type_check
label_desc: Use image node_id 2 for calling the TensorGeometry obj's underlying member method code with example usage: obj.ndim() and returns: len