fn copy_to_mem(
decompressed_data: &[u8],
mem: Arc<dyn BackingMemory + Send + Sync>,
mem_offsets: MemRegionIter<'_>,
) -> Result<usize>fn copy_to_mem(
decompressed_data: &[u8],
mem: Arc<dyn BackingMemory + Send + Sync>,
mem_offsets: MemRegionIter<'_>,
) -> Result<usize>