def METHOD_NAME(self, processed_data, _):
    '''EOS MLAG data massaging'''
    for entry in processed_data:
        # There's no MLAG without systemID
        if not entry['systemId']:
            return []
        entry['mlagDualPortsList'] = []
        entry['mlagSinglePortsList'] = []
        entry['mlagErrorPortsList'] = []
        for port_info in zip(entry.get('_localInterfaceList', []),
                             entry.get('_linkStateList', [])):
            if port_info[1] == 'active-full':
                entry['mlagDualPortsList'].append(port_info[0])
            elif port_info[1] == 'active-partial':
                entry['mlagSinglePortsList'].append(port_info[0])
            elif port_info[1] in ['disabled', 'inactive']:
                entry['mlagErrorPortsList'].append(port_info[0])
    return processed_data