Get all monitor configuration policies

Example response

{
  "data": [
    {
      "attributes": {
        "policy": {
          "tag_key": "datacenter",
          "tag_key_required": true,
          "valid_tag_values": [
            "prod",
            "staging"
          ]
        },
        "policy_type": "tag"
      },
      "id": "00000000-0000-1234-0000-000000000000",
      "type": "monitor-config-policy"
    }
  ]
}