websocket推送ptz增加当前操作用户中文名

‘liusuyi’

2023-07-04 e07cc12a2c219fceeaecd96e77ed642037552fda

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export function isPromise(maybePromise) {
    return (!!maybePromise &&
        !!maybePromise.then &&
        typeof maybePromise.then === 'function');
}