@Override
	public StructureDataType getRowDataType() {
		StructureDataType rowDt = new StructureDataType(new CategoryPath(PATH), "Constant Row", 0);
		rowDt.add(CliTypeCodeDataType.dataType, "Type", "if Class, indicates nullref");
		rowDt.add(BYTE, "Reserved", "should be 0");
		rowDt.add(CliIndexHasConstant.toDataType(metadataStream), "Parent",
			"index - coded HasConstant");
		rowDt.add(metadataStream.getBlobIndexDataType(), "Value", "index into Blob heap");
		return rowDt;
	}
Describes the Constant table. Each row represents a constant value for a Param, Field, or Property.
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/pe/cli/tables/CliTableConstant.java