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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def load(obj, env=None, silent=True, key=None):
 """Reads and loads in to "settings" a single key or all keys from redis :param obj: the settings instance :param env: settings env default='DYNACONF' :param silent: if errors should raise :param key: if defined load a single key, else load all in env :return: None """

    redis = StrictRedis(**obj.get("REDIS_FOR_DYNACONF"))
    holder = obj.get("ENVVAR_PREFIX_FOR_DYNACONF")
    try:
        if key:
            value = redis.hget(holder.upper(), key)
            if value:
                obj.logger.debug(
                    "redis_loader: loading by key: %s:%s (%s:%s)",
                    key,
                    value,
                    IDENTIFIER,
                    holder,
                )
            if value:
                parsed_value = parse_conf_data(value, tomlfy=True)
                if parsed_value:
                    obj.set(key, parsed_value)
        else:
            data = {
                key: parse_conf_data(value, tomlfy=True)
                for key, value in redis.hgetall(holder.upper()).items()
            }
            if data:
                obj.logger.debug(
                    "redis_loader: loading: %s (%s:%s)",
                    data,
                    IDENTIFIER,
                    holder,
                )
                obj.update(data, loader_identifier=IDENTIFIER)
    except Exception as e:
        if silent:
            if hasattr(obj, "logger"):
                obj.logger.error(str(e))
            return False
        raise