curl --request GET \
  --url https://api.hubapi.com/integrations/v1/{application}-id/timeline/event-types

"\nExample output:\n\n[{\n  \"id\":1,\n  \"name\":\"Event Type Name\",\n  \"headerTemplate\":null,\n  \"detailTemplate\":null,\n  \"objectType\":\"CONTACT\",\n  \"applicationId\":123\n},{\n  \"id\":74,\n  \"name\":\"Another Event Type\",\n  \"headerTemplate\":null,\n  \"detailTemplate\":null,\n  \"objectType\":\"COMPANY\",\n  \"applicationId\":123\n}]"