Get available handoff options

curl --request GET \
  --url https://api.example.com/v4/handoff/available-handoffs \
  --header 'x-meetergo-api-user-id: <api-key>'

{
  "users": [
    {
      "firstname": "<string>",
      "lastname": "<string>",
      "id": "<string>",
      "picture": "<string>",
      "blocked": "not_available"
    }
  ]
}