docs: def write_molden(*args, **kwargs):
      """Deprecated, use :func:`~chemcoord.xyz_functions.to_molden`
      """
      message = 'Will be removed in the future. Please use to_molden().'
      with warnings.catch_warnings():
          warnings.simplefilter("always")
          warnings.warn(message, DeprecationWarning)
      return to_molden(*args, **kwargs)