docs: def is_data_dependent(fmto, data):
      """Check whether a formatoption is data dependent
  
      Parameters
      ----------
      fmto: Formatoption
          The :class:`Formatoption` instance to check
      data: xarray.DataArray
          The data array to use if the :attr:`~Formatoption.data_dependent`
          attribute is a callable
  
      Returns
      -------
      bool
          True, if the formatoption depends on the data"""
      if callable(fmto.data_dependent):
          return fmto.data_dependent(data)
      return fmto.data_dependent