code: def theano_dtype(expr):
      return {"double": float64, "float": float32, "int": int64}[
          sympy_dtype(expr)
      ]
  
imports: from __future__ import absolute_import, print_function, division
  import itertools
  from theano.scalar.basic import Apply, ScalarOp, as_scalar, float64, float32, int64
  from theano.gof.utils import remove
label_desc: Use image node_id 3 for calling a global function with example usage: theano_dtype(expr) and returns: dict