curl --request GET \
  --url https://api.rezora.io/api/v1/contacts/groups/ \
  --header 'Authorization: Bearer <token>'

[
  {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "post_call_analyzers": [
      {}
    ],
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z",
    "user_agents": {},
    "contact_groups": {},
    "name": "<string>",
    "description": "<string>",
    "status": "<string>",
    "paused_reason": "<string>",
    "agent_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "contact_group_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "concurrent_calls": 0,
    "max_retry_days": 0,
    "calling_hours": "<unknown>",
    "schedule_config": "<unknown>",
    "active_days": "<unknown>",
    "field_mappings": "<unknown>",
    "selected_contact_fields": "<unknown>",
    "timezone": "<string>",
    "call_insights": "<unknown>",
    "started_at": "2023-11-07T05:31:56Z",
    "completed_at": "2023-11-07T05:31:56Z"
  }
]