Primitive types (as per chapter 3.3 in TOSCA spec: https://docs.oasis-open.org/tosca/TOSCA-Simple-Profile-YAML/v1.3/os/TOSCA-Simple-Profile-YAML-v1.3-os.html#_Toc26969444) should not be displayed as data types in the UI for any model (as they are not data types per se, even though they are constructed as such in SDC)

e.g.

boolean
float
integer
json
list
map
range
scalar-unit
scalar-unit.bitrate
scalar-unit.frequency
scalar-unit.size
scalar-unit.time
string
timestamp