Merge branch '2.6.9' into wvp-28181-2.0

648540858

2024-01-19 47e5d2b00b5b13c1004f94a7ccd3f406391698a0

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package com.genersoft.iot.vmp.service.bean;
 
public interface PlayBackCallback<T> {
 
    void call(PlayBackResult<T> msg);
 
}