parameters: (self)
docstring: Raises a ValueError for `MultiIndex` because there's no single
          array backing a MultiIndex.
  
          Raises
          ------
          ValueError
docstring_summary: Raises a ValueError for `MultiIndex` because there's no single
          array backing a MultiIndex.
docstring_tokens: Raises a ValueError for MultiIndex because there s no single array backing a MultiIndex .
function: def array(self):
          """
          Raises a ValueError for `MultiIndex` because there's no single
          array backing a MultiIndex.
  
          Raises
          ------
          ValueError
          """
          raise ValueError(
              "MultiIndex has no single backing array. Use "
              "'MultiIndex.to_numpy()' to get a NumPy array of tuples."
          )
function_tokens: def array ( self ) : raise ValueError ( "MultiIndex has no single backing array. Use " "'MultiIndex.to_numpy()' to get a NumPy array of tuples." )