code: def _entry(self, i, j, **kwargs):
      from sympy.matrices.expressions import MatMul
  
      A = self.doit()
      if isinstance(A, MatPow):
          # We still have a MatPow, make an explicit MatMul out of it.
          if A.exp.is_Integer and A.exp.is_positive:
              A = MatMul(*[A.base for k in range(A.exp)])
          elif not self._is_shape_symbolic():
              return A._get_explicit_matrix()[i, j]
          else:
              # Leave the expression unevaluated:
              from sympy.matrices.expressions.matexpr import (
                  MatrixElement,
              )
  
              return MatrixElement(self, i, j)
      return A[i, j]
  
imports: from .matexpr import MatrixExpr
  from .special import Identity
  from sympy.core import S
  from sympy.core.expr import ExprBuilder
  from sympy.core.cache import cacheit
  from sympy.core.power import Pow
  from sympy.core.sympify import _sympify
  from sympy.matrices import MatrixBase
  from sympy.matrices.exceptions import NonSquareMatrixError
label_desc: Use image node_id 6 for calling the MatPow obj's underlying member method code with example usage: obj._entry(i, j) and returns: A, A, MatrixElement