Remove aesara.compile.ops.expandable_types

aesara/compile/ops.py

@@ -213,11 +213,6 @@ class DeepCopyOp(COp):
 deep_copy_op = DeepCopyOp()
 
 
-# List of Aesara Types that one can add an extra dimension and for which
-# Scan can deal with.
-expandable_types = ()
-
-
 def load_back(mod, name):
     __import__(mod)
     import sys

aesara/scan/basic.py

@@ -4,7 +4,7 @@ from collections import OrderedDict
 import numpy as np
 
 import aesara.tensor as aet
-from aesara.compile import SharedVariable, ops
+from aesara.compile import SharedVariable
 from aesara.compile.function import function
 from aesara.compile.mode import Mode
 from aesara.configdefaults import config
@@ -869,7 +869,7 @@ def scan(
             new_var = safe_new(input.variable)
             if getattr(input.variable, "name", None) is not None:
                 new_var.name = input.variable.name + "_copy"
-            if isinstance(new_var.type, ops.expandable_types):
+            if isinstance(new_var.type, TensorType):
                 sit_sot_inner_inputs.append(new_var)
                 sit_sot_scan_inputs.append(
                     utils.expand_empty(

aesara/tensor/type.py

@@ -598,9 +598,6 @@ class TensorType(CType):
             return np.dtype(self.dtype).itemsize
 
 
-aesara.compile.ops.expandable_types += (TensorType,)
-
-
 def values_eq_approx(
     a, b, allow_remove_inf=False, allow_remove_nan=False, rtol=None, atol=None
 ):