'Retrieve initaitor list from the array.
:param array: the array serial number
:param params: dict of optional params
:returns: list of initiators'

def get_initiator_list(self, array, params=None):

    init_dict = self.get_resource(array, SLOPROVISIONING, 'initiator', params=params)
    try:
        init_list = init_dict['initiatorId']
    except KeyError:
        init_list = []
    return init_list
