code: def tensor_product_simp(e, **hints):
      """Try to simplify and combine TensorProducts.
  
      In general this will try to pull expressions inside of ``TensorProducts``.
      It currently only works for relatively simple cases where the products have
      only scalars, raw ``TensorProducts``, not ``Add``, ``Pow``, ``Commutators``
      of ``TensorProducts``. It is best to see what it does by showing examples.
  
      Examples
      ========
  
      >>> from sympy.physics.quantum import tensor_product_simp
      >>> from sympy.physics.quantum import TensorProduct
      >>> from sympy import Symbol
      >>> A = Symbol('A',commutative=False)
      >>> B = Symbol('B',commutative=False)
      >>> C = Symbol('C',commutative=False)
      >>> D = Symbol('D',commutative=False)
  
      First see what happens to products of tensor products:
  
      >>> e = TensorProduct(A,B)*TensorProduct(C,D)
      >>> e
      AxB*CxD
      >>> tensor_product_simp(e)
      (A*C)x(B*D)
  
      This is the core logic of this function, and it works inside, powers, sums,
      commutators and anticommutators as well:
  
      >>> tensor_product_simp(e**2)
      (A*C)x(B*D)**2
  
      """
      if isinstance(e, Add):
          return Add(*[tensor_product_simp(arg) for arg in e.args])
      elif isinstance(e, Pow):
          if isinstance(e.base, TensorProduct):
              return tensor_product_simp_Pow(e)
          else:
              return tensor_product_simp(e.base) ** e.exp
      elif isinstance(e, Mul):
          return tensor_product_simp_Mul(e)
      elif isinstance(e, Commutator):
          return Commutator(
              *[tensor_product_simp(arg) for arg in e.args]
          )
      elif isinstance(e, AntiCommutator):
          return AntiCommutator(
              *[tensor_product_simp(arg) for arg in e.args]
          )
      else:
          return e
  
imports: from sympy.core.add import Add
  from sympy.core.expr import Expr
  from sympy.core.mul import Mul
  from sympy.core.power import Pow
  from sympy.core.sympify import sympify
  from sympy.matrices.dense import DenseMatrix
  from sympy.matrices.immutable import ImmutableDenseMatrix
  from sympy.printing.pretty.stringpict import prettyForm
  from sympy.physics.quantum.qexpr import QuantumError
  from sympy.physics.quantum.dagger import Dagger
  from sympy.physics.quantum.commutator import Commutator
  from sympy.physics.quantum.anticommutator import AntiCommutator
  from sympy.physics.quantum.state import Ket, Bra
  from sympy.physics.quantum.matrixutils import numpy_ndarray, scipy_sparse_matrix, matrix_tensor_product
  from sympy.physics.quantum.trace import Tr
label_desc: Use image node_id 4 for calling a global function with example usage: tensor_product_simp(e) and returns: Add, tensor_product_simp_Pow, unknown, tensor_product_simp_Mul, Commutator, AntiCommutator, e