self.mmap_tree.decode(&mut br, mmap_size)?;
self.mclr_tree.decode(&mut br, mclr_size)?;
self.full_tree.decode(&mut br, full_size)?;
self.mmap_tree.decode(&mut br, mmap_size)?;
self.mclr_tree.decode(&mut br, mclr_size)?;
self.full_tree.decode(&mut br, full_size)?;