when it encounters map[string]interface{} or []interface{} types, hcl2_upgrade now takes the 'most complex' entry from those in order to tell wether this is going to be a body `body {}` or an attribute `attribute = {}`. Before that the hcl2_upgrade command could be a bit random there.
A way better ( but may be somewhat hard ) way to do this would be to use the actual plugins structs in order to generate the HCL2.
Adrien Delorme
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