code: def mdft(n):
      r"""
      .. deprecated:: 1.9
  
         Use DFT from sympy.matrices.expressions.fourier instead.
  
         To get identical behavior to ``mdft(n)``, use ``DFT(n).as_explicit()``.
      """
      from sympy.matrices.expressions.fourier import DFT
  
      return DFT(n).as_mutable()
  
imports: from sympy.core.numbers import I
  from sympy.matrices.dense import MutableDenseMatrix
  from sympy.utilities.decorator import deprecated
label_desc: Use image node_id 4 for calling a global function with example usage: mdft(n) and returns: DFT