lsst.meas.algorithms.addExposures(exposureList)
Parameters: exposureList : list of lsst.afw.image.Exposure Sequence of exposures to add. addedExposure : lsst.afw.image.Exposure An exposure of the same size as each exposure in exposureList, with the metadata from exposureList[0] and a masked image equal to the sum of all the exposure’s masked images.