code: def as_mutable(self):
      return MutableDenseNDimArray(self)
  
imports: import functools
  from typing import List
  from sympy.core.basic import Basic
  from sympy.core.containers import Tuple
  from sympy.core.singleton import S
  from sympy.core.sympify import _sympify
  from sympy.tensor.array.mutable_ndim_array import MutableNDimArray
  from sympy.tensor.array.ndim_array import NDimArray, ImmutableNDimArray, ArrayKind
  from sympy.utilities.iterables import flatten
label_desc: Use image node_id 4 for calling the ImmutableDenseNDimArray obj's underlying member method code with example usage: obj.as_mutable() and returns: MutableDenseNDimArray