public byte[] readBlock() throws IOException {
		return provider.readBytes(startAddress, blockSize);
	}
Reads the data block in its entirety.
@return the read bytes in a byte array.
@throws IOException if there is an error while reading the data block.
Ghidra/Features/FileFormats/src/main/java/ghidra/file/formats/cramfs/CramFsBlock.java