def set_region_appliance_association(
    self,
    appliance_region_map: dict,
) -> bool:
    """Set association between appliances and regions. Can set one or
    many associations.

    .. list-table::
        :header-rows: 1

        * - Swagger Section
          - Method
          - Endpoint
        * - regions
          - POST
          - /regions/appliances

    :param appliance_region_map: Dictionary where each key/value pair is
        an appliance nePk (e.g. ``3.NE``) and region_id.
        e.g. {"3.NE":"1", "10.NE","2",...}
    :type appliance_region_map: dict
    :return: Returns True/False based on successful call
    :rtype: bool
    """
    return self._post(
        "/regions",
        data=appliance_region_map,
        expected_status=[204],
        return_type="bool",
    )