attribute[].name "my_int_field"
attribute[].referencefield "a_ref"
attribute[].targetfield "int_field"
attribute[].name "my_string_field"
attribute[].referencefield "b_ref"
attribute[].targetfield "string_field"
attribute[].name "my_int_array_field"
attribute[].referencefield "a_ref"
attribute[].targetfield "int_array_field"
attribute[].name "my_int_wset_field"
attribute[].referencefield "a_ref"
attribute[].targetfield "int_wset_field"
attribute[].name "my_ancient_int_field"
attribute[].referencefield "a_ref"
attribute[].targetfield "ancient_int_field"