[]小游戏截图问题

[code]canvas.toTempFilePath({

    =inheritx: =inherit10,

    =inherity: =inherit10,

    =inheritwidth: =inherit200,

    =inheritheight: =inherit150,

    =inheritdestWidth: =inherit400,

    =inheritdestHeight: =inherit300,

    =inheritsuccess: (res) = > {

        wx.shareAppMessage({

            =inheritimageUrl: res.tempFilePath

        })

    }

})

这是小游戏官方例子 这个canvas 我直接换成 Laya.Browser.canvas 报错啊 请问用laya引擎怎么截图