How to use the cryptostore.aggregator.cache.Cache function in cryptostore

associated with this software.
'''
import json
import logging

from cryptofeed.defines import L2_BOOK, L3_BOOK, TRADES, TICKER, FUNDING, OPEN_INTEREST

from cryptostore.engines import StorageEngines
from cryptostore.aggregator.cache import Cache
from cryptostore.aggregator.util import book_flatten


LOG = logging.getLogger('cryptostore')


class Kafka(Cache):
    def __init__(self, ip, port, flush=False):
        self.conn = {}
        self.ip = ip
        self.port = port
        self.ids = {}

        if flush:
            kafka = StorageEngines['confluent_kafka.admin']
            ac = kafka.admin.AdminClient({'bootstrap.servers': f"{ip}:{port}"})
            topics = list(ac.list_topics().topics.keys())
            for topic, status in ac.delete_topics(topics).items():
                try:
                    status.result()
                    LOG.info("Topic %s deleted", topic)
                except Exception as e:
                    LOG.warning("Failed to delete topic %s: %s", topic, e)

import logging
from collections import defaultdict
import json
import time

from cryptofeed.defines import TRADES, L2_BOOK, L3_BOOK, TICKER, FUNDING, OPEN_INTEREST

from cryptostore.aggregator.util import book_flatten
from cryptostore.aggregator.cache import Cache
from cryptostore.engines import StorageEngines


LOG = logging.getLogger('cryptostore')


class Redis(Cache):
    def __init__(self, ip=None, port=None, socket=None, del_after_read=True, flush=False, retention=None):
        self.del_after_read = del_after_read
        self.retention = retention
        self.last_id = {}
        self.ids = defaultdict(list)
        if ip and port and socket:
            raise ValueError("Cannot specify ip/port and socket for Redis")
        self.conn = StorageEngines.redis.Redis(ip, port, unix_socket_path=socket, decode_responses=True)
        if flush:
            LOG.info('Flushing cache')
            self.conn.flushall()


    def read(self, exchange, dtype, pair, start=None, end=None):
        key = f'{dtype}-{exchange}-{pair}'