FFIStructure questions:
following page 40 of the 2020-02-12-uFFI-V1.0.1.pdf booklet:

FFIStructure subclass: #RsnStructure
instanceVariableNames: ''
classVariableNames: ''
package: 'LiraRSN'
�� ��
RsnStructure class >> fieldsDesc [
^ #(
int ke;
int node;
float rz;
float x;
float y;
) ]
�� ��
RsnStructure rebuildFieldAccessors ��>> resulted:

"Instance of RsnStucture class did not undestand #readStream",
in FFIExternalStructureFieldParser ��class >> parseField:structure: