@Override
	public String getDescription() {
		return "struct descriptor";
	}
Gets the offset of the field offset vector for this struct's stored properties in its 
metadata, if any. 0 means there is no field offset vector.

@return The offset of the field offset vector for this struct's stored properties in its 
  metadata, if any. 0 means there is no field offset vector.
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/swift/types/TargetStructDescriptor.java