code: def MyVariable(name):
      return Variable(MyType(name), None, None)
  
imports: from __future__ import absolute_import, print_function, division
  from theano.gof.graph import Variable, Apply
  from theano.gof.type import Type
  from theano.gof.op import Op
  from theano.gof.fg import FunctionGraph
  from theano.gof.toolbox import NodeFinder
label_desc: Use image node_id 2 for calling a global function with example usage: MyVariable(name) and returns: Variable