Foreman smart class override - using hammer

I have recently installed foreman 3.8 and I have found that I think the API has changed for our previous foreman 1.2x and we had our smartparameter overrides coded in curl command which no longer work. So I was look to maybe change to using hammer to set overrides for a given package connected to a given server. But I have not see how this is possible, any guidance would be useful, below is the hammer version that was installed

[root@tpec00pupfor01 bin]# hammer --version
hammer (3.8.0)

  • hammer_cli_foreman (3.8.0)
  • hammer_cli_foreman_puppet (0.0.6)

Expected outcome:

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