Struct std::hash< lsst::afw::image::pixel::SinglePixel< ImagePixelT, MaskPixelT, VariancePixelT > >

template<typename ImagePixelT, typename MaskPixelT, typename VariancePixelT>
struct hash<lsst::afw::image::pixel::SinglePixel<ImagePixelT, MaskPixelT, VariancePixelT>>