@Override
	public DataType toDataType() throws DuplicateNameException, IOException {
		Structure structure = new StructureDataType("ext4_extent", 0);
		structure.add(DWORD, "ee_block", null);
		structure.add(WORD, "ee_len", null);
		structure.add(WORD, "ee_start_hi", null);
		structure.add(DWORD, "ee_start_lo", null);
		return structure;
	}
Returns the block number of where the data for this extent is stored.

@return starting block number of where data for this extent is stored
Ghidra/Features/FileFormats/src/main/java/ghidra/file/formats/ext4/Ext4Extent.java