100644 blob 311c16dfd53e3c8bbdd841d66baba0332a7db93e	MDCCollectionViewLayoutAttributes.h
100644 blob bdb1d94b2cccae0fa226bb854412f21ac08769c1	MDCCollectionViewLayoutAttributes.m
100644 blob a423edb9a553680522967ff98dfc24e70f29ff61	MaterialCollectionLayoutAttributes.h