code: def stationary_distribution_sensitivity(T, j):
      r
      T = _types.ensure_ndarray_or_sparse(T, ndim=2, uniform=True, kind='numeric')
      if _issparse(T):
          _showSparseConversionWarning()
          stationary_distribution_sensitivity(T.todense(), j)
      else:
          return dense.sensitivity.stationary_distribution_sensitivity(T, j)
docs: r"""Sensitivity matrix of a stationary distribution element.
  
      Parameters
      ----------
      T : (M, M) ndarray
         Transition matrix (stochastic matrix).
      j : int
          Index of stationary distribution element
          for which sensitivity matrix is computed.
  
  
      Returns
      -------
      S : (M, M) ndarray
          Sensitivity matrix for the specified element
          of the stationary distribution.